Boss pets

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Boss pets are pets that resemble miniature boss monsters. There are two broad types of boss pets – those unlocked by specific drop by the boss in question, and those unlocked by other means.

Unlocking all boss pets is one of the requirements for the Insane Final Boss title.

Mechanics[edit | edit source]

The mechanics for the drop chance of the unlock item for boss pets released from 5 January 2015 are as follows:^[1]

Each boss has a base drop chance of the item, represented as ${\frac {1}{x}}$ ${\frac {1}{x}}$ . For example, General Graardor's decaying tooth has a base drop chance of 1/5000.
- Bosses with a hard mode have a drop chance that is 5 times higher when killed in that mode. For example, the decaying tooth is 1/1000 in hard mode. Bosses with a challenge mode - e.g. bosses in The Heart - have a doubled drop chance in that mode.
Each boss has an associated threshold, which is a number $y$ $y$ . For example, General Graardor's threshold is 1000. This number relates to the total kills of the boss recorded in the player's Beasts tab in the Adventures interface.
- With the exception of Tess, the thresholds are all 1/5 of the drop chance's denominator multiplied by the number of pets. For example, the Dagannoth Kings have a drop chance of X/2500. One-fifth of 2500 is 500, but there are 3 pets, so the threshold is 3×500, or 1500.
- This threshold modifier does not apply to Vindicta or the Twin Furies.
For every $y$ $y$ recorded kills the player has of the boss, the numerator of the drop chance increases by 1.
- This is rounded down, so having 1999 recorded General Graardor kills is treated the same as 1000 recorded General Graardor kills.
- For bosses with a hard mode, the two kill counts are added together when checking the number of times the threshold has been met. Normal mode and hard mode kills are weighted equally; i.e. 1 hard mode kill has the same effect on increasing the drop chance as 1 normal mode kill does.
- The numerator is capped at 10, so the drop chance will no longer increase once the threshold has been passed 9 times.
- For example, a player with 2464 General Graardor kills and 603 hard mode General Graardor kills has 3067 total kills, so their decaying tooth drop chance numerator is increased by 3, giving a drop chance of 4/5000 (1/1250) in normal mode and 4/1000 (1/250) in hard mode.
- This will cap at 10/XXXX meaning that once you have reached the threshold a total of nine times, then it cannot improve your drop chances anymore.

In a mathematical format your chance $f$ of receiving a pet on any particular kill is:

f={\frac {1+\min(\lfloor {\frac {K+K_{H}}{D\times P\div 5}}\rfloor ,9)}{D}}

Where:

$K$ is your normal mode kill count and $K_{H}$ is your hard mode kill count
$D$ is the denominator of the base drop rate
$P$ $P$ is the number of pets available from the boss
- This can be simplified such that ( ${D\times P\div 5}$ ) is the threshold value, everytime this value is reached in killcount is ( $K+K_{H}$ ), the chance of receiving a pet: $f={\frac {1+\min(\lfloor {thresholds\ hit}\rfloor ,9)}{D}}$
- This effectively makes each threshold reached change the pet base denominator to be ${\frac {D}{thresholds\ hit*}}$ where $*$ is up to a maximum of 9 times.

Pets unlocked by drops[edit | edit source]

The majority of these pets were added in the boss pets update on 5 January 2015. They are all unlocked by obtaining a specific item drop from the relevant boss. A server-wide broadcast occurs when a player receives a drop. When the player uses the item, the item is consumed and the pet is unlocked with the message: As you touch the artefact, a familiar face approaches you. Congratulations! You have unlocked the pet: <pet unlocked>.

Pets can be obtained while LootShare is active; however, they are not distributed via LootShare. Boss pets are always given to the player who would have obtained the drop if LootShare was not active.

Each of these pets can be examined (by any player) to display the number of kills their owner has against the corresponding boss. They can also be used to override Summoning familiars from the boss pets section of the pets interface. If used this way, the overridden familiar will show the relevant killcount upon being examined, beneath the normal familiar examine.

Boss pet	Boss	Unlock item	Base denominator (hard/challenge mode)^[1]	Threshold^[1]
King Black Dragonling	King Black Dragon	King black dragon scale^{[n 1]}	2,500^[1]	500^[1]
Kalphite Grublet	Kalphite Queen	Kalphite egg^{[n 2]}	2,500^[1]	500^[1]
Rex hatchling	Dagannoth Rex	Shrivelled dagannoth claw	2,500^[1]	1,500^[1]
Prime hatchling	Dagannoth Prime	Dagannoth egg	2,500^[1]	1,500^[1]
Supreme hatchling	Dagannoth Supreme	Dagannoth scale	2,500^[1]	1,500^[1]
Ellie	Chaos Elemental	Ribs of chaos	2,500^[1]	500^[1]
Molly	Giant Mole	Rotten fang	2,500 (500)^[1]	500^[1]
Chick'arra	Kree'arra	Giant feather	5,000 (1,000)^[1]	1,000^[1]
Commander Miniana	Commander Zilyana	Auburn lock	5,000 (1,000)^[1]	1,000^[1]
General Awwdor	General Graardor	Decaying tooth	5,000 (1,000)^[1]	1,000^[1]
K'ril Tinyroth	K'ril Tsutsaroth	Severed hoof	5,000 (1,000)^[1]	1,000^[1]
Nexterminator	Nex	Blood-soaked feather	2,000^[1]	400^[1]
Reeves	Nex: Angel of Death	Blood tentacle	3,000	600^[2]
Corporeal Puppy	Corporeal Beast	Corporeal bone	2,500^[1]	500^[1]
Shrimpy	Har-Aken	Volcanic shard	200^[1]	40^[1]
Queen Black Dragonling	Queen Black Dragon	Queen Black Dragon scale^{[n 1]}	2,500^[1]	500^[1]
Kalphite Grubling	Kalphite King	Kalphite claw	2,000^[1]	400^[1]
Legio Primulus	Legio Primus	Corrupted Ascension signet I	1,000^[1]	1,200^[1]
Legio Secundulus	Legio Secundus	Corrupted Ascension signet II	1,000^[1]	1,200^[1]
Legio Tertiolus	Legio Tertius	Corrupted Ascension signet III	1,000^[1]	1,200^[1]
Legio Quartulus	Legio Quartus	Corrupted Ascension signet IV	1,000^[1]	1,200^[1]
Legio Quintulus	Legio Quintus	Corrupted Ascension signet V	1,000^[1]	1,200^[1]
Legio Sextulus	Legio Sextus	Corrupted Ascension signet VI	1,000^[1]	1,200^[1]
Vitalis	Vorago	Ancient summoning stone	5,000 (2,500)^{[n 3]}^[3]	1,000^[4]
Bombi	Vorago	Ancient artefact	50^{[n 4]}^{[n 5]}^[5]	N/A^{[n 6]}
Barry	Araxxor	Araxyte egg^{[n 7]}	500^[1]	200^[1]
Mallory	Araxxi	Araxyte egg^{[n 7]}	500^[1]	200^[1]
Diddyzag	Beastmaster Durzag	Durzag's helmet	300^[6]	60^[6]
Lil' Tuzzy^{[n 8]}	Beastmaster Durzag	N/A^{[n 9]}	512^[7]	N/A^{[n 6]}
Yakaminu	Yakamaru	Yakamaru's helmet	300^[6]	60^[6]
Greg	Gregorovic	Faceless mask	2,000 (1,000)^{[n 10]}^[8]	400^[8]
Lilwyr	Helwyr	Twisted antler	2,000 (1,000)^{[n 10]}^[8]	400^[8]
Ava	Twin Furies	Avaryss' braid	2,000 (1,000)^{[n 10]}^{[n 11]}^[8]^[9]	400^[8]
Nylessa	Twin Furies	Nymora's braid	2,000 (1,000)^{[n 10]}^{[n 11]}^[8]^[9]	400^[8]
Vindiddy	Vindicta	Imbued blade slice	2,000 (1,000)^{[n 10]}^{[n 11]}^[8]^[9]	400^[8]
Rawrvek	Vindicta	Glimmering scale^{[n 1]}	2,000 (1,000)^{[n 10]}^{[n 11]}^[8]^[9]	400^[8]
Tess	Telos, the Warden	Telos' tendril	1,400 (700)^{[n 12]}^[10]	300
The Minister	The Magister	Soul fragment	1,000	200
Solly	Solak	Imbued bark shard	1,200	240^{[n 13]}^[2]
Kuroryu	Seiryu the Azure Serpent	Chipped black stone crystal	300 (solo), 1,000 (duo), 1,500 (trio)^[11]^[12]^[13]	60 (solo), 200 (duo), 300 (trio)^{[n 14]}^{[n 15]}^[2]^[14]^[15]
Bisdi	Black stone dragon	Inert black stone crystal	300 (solo), 1,000 (duo), 1,500 (trio)^[11]^[12]	60 (solo), 200 (duo), 300 (trio)^{[n 14]}^[2]^[14]
Ambi	The Ambassador	Umbral urn	300 (solo), 1,000 (duo), 1,500 (trio)^[11]^[12]	60 (solo), 200 (duo), 300 (trio)^{[n 14]}^[2]^[14]
Raklette	Raksha, the Shadow Colossus	Broken shackle	1,000^[16]	200^[16]
Bagra	Orikalka	Pristine Bagrada rex egg	2,000^[17]	1,000^[17]
Pavo	Pthentraken	Pristine Pavosaurus rex egg	2,000^[17]	1,000^[17]
Corbi	Rathis	Pristine Corbicula rex egg	2,000^[17]	1,000^[17]
Kerry	Kerapac, the bound	Kerapac's mask piece	Unknown	Unknown
Gladys	Arch-Glacor	Glacor core	Unknown	Unknown
Little Sus	Croesus	Croesus's enriched root	Unknown	Unknown

Notes

^ ^a ^b ^c Level 99 Summoning is required to summon the pet, but it is not required to receive the drop.
^ Unlocks both forms of the Kalphite Queen.
^ This is the "per drop" chance, where Vorago gives 5 drops per kill. As such, the "per kill" drop chance (the chance that at least one is dropped in Vorago's 5 drops) is a between 1/1000 and 1/1001 (or between 1/500 and 1/501 in hard mode). If 5 players each obtain one of the drop slots, their individual chances are 1/5000 (1/2500 in hard mode).
^ Obtainable only after the player has used the Maul of omens on Vorago in hard mode on all rotations.
^ This is the "per drop" chance, where Vorago gives 5 drops per kill. As such, the "per kill" drop chance (the chance that at least one is dropped in Vorago's 5 drops) is between 1/11 and 1/10. If 5 eligible players each obtain one of the drop slots, their individual chances are 1/50.
^ ^a ^b This drop does not use the kill threshold system to improve drop chance.
^ ^a ^b This drop can only be obtained after all six Araxyte pet skins have been obtained. The first egg used unlocks Barry; the second, Mallory.
^ This pet is not required for Insane Final Boss
^ This pet unlocks directly from the loot interface, with no item to claim.
^ ^a ^b ^c ^d ^e ^f Drop chance is not affected by the drop increase reward from reputation.
^ ^a ^b ^c ^d One roll for each pet per kill of the boss.
^ 1,400 in encounters of 99% or lower enrage, 700 in encounters of 100%+ enrage.
^ Originally had a threshold of 500
^ ^a ^b ^c Solo and group killcounts are combined to determine the threshold that has been reached
^ Originally had a threshold of 250 for solo and 1000 for a group

Pets unlocked through other methods[edit | edit source]

Boss pet	Boss	Unlock method
TzRek-Jad	TzTok-Jad	Buy from the Soul Wars store for 100 Zeal points and a fire cape, or Stanley Limelight Traders for 1200 thaler and a fire cape. This also requires 99 Slayer and 99 Summoning.
Mega ducklings	Mega Duck	Bring Mega Duck to the coast of South Feldip Hills; unlock chance of 1 in 20^[18]
Ahrim the Bobbled	Ahrim the Blighted	Craft using 250 malevolent energy and Barrows - Ahrim's set
Dharok the Bobbled	Dharok the Wretched	Craft using 250 malevolent energy and Barrows - Dharok's set
Guthan the Bobbled	Guthan the Infested	Craft using 250 malevolent energy and Barrows - Guthan's set
Karil the Bobbled	Karil the Tainted	Craft using 250 malevolent energy and Barrows - Karil's set
Torag the Bobbled	Torag the Corrupted	Craft using 250 malevolent energy and Barrows - Torag's set
Verac the Bobbled	Verac the Defiled	Craft using 250 malevolent energy and Barrows - Verac's set

Boss pet totals[edit | edit source]

Pet	29 Jan 2015^[19]	18 Sep 2015^[20]	15 Mar 2016^[21]	4 May 2016^[22]	16 Aug 2016^[23]	25 Apr 2017^[24]
Mallory	114	1294	N/A	N/A	3752	5800
Barry	241	1881	N/A	N/A	4749	7171
Ellie	230	2095	N/A	N/A	4207	5440
Commander Miniana	405	2454	N/A	N/A	5285	6759
Corporeal Puppy	225	2041	N/A	N/A	5304	7292
Prime hatchling	296	2392	N/A	N/A	4228	5465
Rex hatchling	374	2592	N/A	N/A	4694	6132
Supreme hatchling	327	2382	N/A	N/A	4168	5352
General Awwdor	1011	5637	N/A	N/A	12700	15730
Molly	95	1173	N/A	N/A	2485	3315
Shrimpy	199	1688	N/A	N/A	3225	3520
Kalphite Grubling	246	1739	N/A	N/A	3199	3639
Kalphite Grublet	64	836	N/A	N/A	1719	2223
King Black Dragonling	250	3581	N/A	N/A	7800	10346
Chick'arra	679	4160	N/A	N/A	8890	12399
K'ril Tinyroth	652	4851	N/A	N/A	11208	15237
Legio Primulus	187	1187	N/A	N/A	2248	2790
Legio Secundulus	201	1192	N/A	N/A	2246	2832
Legio Tertiolus	171	1175	N/A	N/A	2186	2746
Legio Quartulus	191	1202	N/A	N/A	2287	2820
Legio Quintulus	205	1178	N/A	N/A	2185	2732
Legio Sextulus	177	1171	N/A	N/A	2215	2776
Mega ducklings	6269	15574	N/A	N/A	19909	23000
Nexterminator	214	1627	N/A	N/A	3865	5588
Queen Black Dragonling	515	3877	N/A	N/A	7983	10499
Vitalis	182^[25]	N/A	489	N/A	591	720
Bombi	N/A	N/A	640	N/A	941	1304
Krar Jnr	N/A	N/A	1127	N/A	1953	N/A
Lil' Tuzzy	N/A	N/A	871	N/A	1266	N/A
Ava	N/A	N/A	N/A	1206	3066	5788
Nylessa	N/A	N/A	N/A	1239	2974	5746
Lilwyr	N/A	N/A	N/A	475	1363	3351
Greg	N/A	N/A	N/A	432	1078	2707
Vindiddy	N/A	N/A	N/A	1151	4025	10611
Rawrvek	N/A	N/A	N/A	1104	3673	9716
Tess	N/A	N/A	N/A	N/A	483	1950
Reeves	N/A	N/A	N/A	N/A	N/A	362
Diddyzag	N/A	N/A	N/A	N/A	N/A	2039
Yakaminu	N/A	N/A	N/A	N/A	N/A	1308
Ahrim the Bobbled	N/A	N/A	N/A	N/A	N/A	1009
Dharok the Bobbled	N/A	N/A	N/A	N/A	N/A	1058
Guthan the Bobbled	N/A	N/A	N/A	N/A	N/A	776
Karil the Bobbled	N/A	N/A	N/A	N/A	N/A	1393
Torag the Bobbled	N/A	N/A	N/A	N/A	N/A	802
Verac the Bobbled	N/A	N/A	N/A	N/A	N/A	859
TzRek-Jad	N/A	N/A	N/A	N/A	N/A	4009

Update history[edit | edit source]

This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!

ninja 1 February 2021 (Update):
- Broadcasts will now display at what XP threshold or kill count a skill or boss pet was obtained.

patch 3 February 2020 (Update):
- Boss pets will now show the correct player’s killcount when examined.

patch 29 January 2018 (Update):
- Pet examines now display the full kill count when a boss is prestiged.

patch 9 May 2016 (Update):
- Boss pet objects are no longer destroyed on death. Instead, they can be reclaimed from Death with a reclaim cost of 8000 coins each.

patch 4 April 2016 (Update):
- Boss pets from God Wars 2 now have a loot beam.

patch 10 August 2015 (Update):
- Players can once again interact with their boss pets via the familiar medallion.

ninja 19 January 2015 (Update):
- Boss pets will now show the tier 3 loot beam as the previously-used tier 1 loot beam was not always appearing.

Trivia[edit | edit source]

The Queen Black Dragonling and Dagannoth hatchlings were originally not planned to be released with the other pets, due to the Queen Black Dragon being "too big" and the Dagannoth Kings having old animations. Due to player feedback, they were included with the other pets.
The original concept was to allow players to obtain the pets by either getting the item as a drop, or by gambling reaper points for a random pet. The latter was scrapped later on.
For a short while after the update, you would get a notification in your chatbox saying "Your favourite bosses can now be obtained as pets, so what are you waiting for? Get out and catch them all!" This is a reference to the Pokémon franchise.
In the first batch of boss pets, all examine texts were plays on their larger counterparts' examines.

References[edit | edit source]

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay Mod Ryan. "Boss pets - Drop rates!." 9 January 2015. Ninja Team Forums.
^ ^a ^b ^c ^d ^e Mod Shauny. "Patch Notes (16 July 2018)." 16 July 2018. Recent Game Updates Forums. Mod Shauny: "Nex:AoD, Solak and Seiryu's boss pet threshold modifiers are now at one fifth of their base random chance."
^ Jagex. Mod Chris L's Twitter account. 8 February 2015. (Archived from the original on 24 March 2015.) Mod Chris L: "1/5k per drop, so should be 1/1k kills"
^ Mod Shauny^{[source needed]}. "Patch Notes (31 July 2017)." 31 July 2017. Recent Game Updates Forums. Mod Shauny: "A threshold of 1,000 has been added to the Ancient Summoning Stone drop from Vorago."
^ Jagex. Mod Ramen's Twitter account. 17 April 2021. (Archived from the original on 17 April 2021.) Mod Ramen: "It's me, it was wrong. Was chatting to someone about it last night and they were convinced it was 1/100 but I remember working on it with Chris, Ryan and Harrison so updated it :)"
^ ^a ^b ^c ^d Mod William. "Patch Notes (20 February 2017)." 20 February 2017. Recent Game Updates Forums. Mod William: "Two new boss pets have been added to the game, Yakaminu (Yakamaru) and Diddyzag (Beastmaster Durzag). They are a requirement for the golden Final Boss title, and have a 1/300 drop rate, with a threshold of 60 kills. They can be won in an "off-loot" kill, and will still be awarded if a player is disconnected or leaves the group after winning the pet, before managing to claim it."
^ Mod Timbo. "Revealing Drop Rates." 20 October 2017. Developers' Blogs. Mod Timbo: "If you don't already own Lil' Tuzzy, Durzag rolls a 1 in 512 chance to drop the pet."
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Jagex. Mod Ramen's Twitter account. 30 March 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "Drop rates are 1/2000 normal mode, 1/1000 challenge mode and 400 threshhold" In response to the question: "Threshes were said to be the same as nex. I haven't seen this confirmed though, maybe kyle can?"
^ ^a ^b ^c ^d Jagex. Mod Ramen's Twitter account. 30 March 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "i've allowed it to roll once for each of pets which is why they seem so common" In response to the question: "I assume it's just 1/2k > Pick one of the two for Twin Furies? Or is there conditions for a specific one?"
^ Jagex. Mod Ramen's Twitter account. 4 July 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "1400" In response to the question: "Is the Telos pet 1/1400 below 100% enr, or 1/1050?"
^ ^a ^b ^c Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "Futon has 245 kills: You have a 4x higher chance to receive the pet on solo mode. You have not yet reached the threshold on group mode. That's a 4/300 (1/75) drop chance in solo. You remain on a 1/1500 in group. … I was actually wrong. It's a 5/300 (1/60) chance on solo. Regular roll + threshold + threshold + threshold + threshold." An example of the combined killcount threshold given in response to a player.
^ ^a ^b ^c Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "Correct. We're VERY happy that our systems allow us to re-use the previous elite dungeon code for new ones." In response to the question: "Oh one more thing - does this same system work for ed1 (and is it likely that it will be like this for ed3?)"
^ Jagex. Mod Orion's Twitter account. 17 May 2019. (Archived from the original on 17 May 2019.) Mod Orion: "Elite dungeon duo pet rates and thresholds btw"
^ ^a ^b ^c Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "I've just looked at the code again. A month or two ago, I altered the thresholds to be more consistent. The thresholds are combined and have been for a while."
^ Jagex. Mod Orion's Twitter account. 24 June 2018. (Archived from the original on 17 January 2019.) Mod Orion: "I believe it's 250 solo and 1k group" In response to the question: "whats the threshold of the new pet I can't find if it was stated anywhere"
^ ^a ^b Jagex. Mod Ryan's Twitter account. 25 December 2020. (Archived from the original on 25 December 2020.) Mod Ryan: "Merry Christmas everyone! Raksha pet drop is 1/1000 with a threshold of 200."
^ ^a ^b ^c ^d ^e ^f Jagex. Mod Orion's Twitter account. 23 April 2021. (Archived from the original on 24 May 2021.) Mod Orion: "Rex Matriarch pet drop rates: 1/2000 with a 1000kc threshold."
^ Jagex. RS Ninja Team - Boss Pets, Wildywyrm and Combat Improvements! (Twitch.tv livestream). 9 December 2014. (Archived from the original on 3 June 2021.)
^ Jagex. Mod Porky's Twitter account. 29 January 2015. (Archived from the original on 30 May 2020.) Mod Porky: "Who wants to know how many boss pets have been unlocked? http://i.imgur.com/iAdN1hG.png" The referenced table contains the transcription of the attached image.
^ Jagex. RuneScape's Twitter account. 22 September 2015. (Archived from the original on 30 May 2020.) RuneScape: "Confirmed. The Kalphite Grublet is the rarest pet. Gratz if you have one! #RSDevQA http://twitch.tv/runescape https://pbs.twimg.com/media/CPhWtRvUkAEuDVl.png" The referenced table contains the transcription of the attached image.
^ Jagex. Mod Ramen's Twitter account. 15 March 2016. (Archived from the original on 30 May 2020.) Mod Ramen: "Here is a little something for all of you curious about how many people own Vitalis, Bombi and Raid pets https://pbs.twimg.com/media/CdlOKyVW0AAV3SD.jpg"
^ Mod Shauny. God Wars Dungeon 2 - A Stats Megadump!. 4 May 2016. (Archived from the original on 30 May 2020.)
^ ImRubic. TL;DW 226 - Q&A + Data Stream!. 30 August 2016. (Archived from the original on 30 May 2020.)
^ Mod Shauny. Here's something you may enjoy IFB & FB numbers & Boss Drops, enjoy!. 25 April 2017. (Archived from the original on 28 October 2019.)
^ The Vitalis count was given by Mod Ryan on High Level Forums; the post with this count no longer exists.

[summoning-2] Level 99 Summoning is required to summon the pet, but it is not required to receive the drop.

[3] Unlocks both forms of the Kalphite Queen.

[5] This is the "per drop" chance, where Vorago gives 5 drops per kill. As such, the "per kill" drop chance (the chance that at least one is dropped in Vorago's 5 drops) is a between 1/1000 and 1/1001 (or between 1/500 and 1/501 in hard mode). If 5 players each obtain one of the drop slots, their individual chances are 1/5000 (1/2500 in hard mode).

[8] Obtainable only after the player has used the Maul of omens on Vorago in hard mode on all rotations.

[9] This is the "per drop" chance, where Vorago gives 5 drops per kill. As such, the "per kill" drop chance (the chance that at least one is dropped in Vorago's 5 drops) is between 1/11 and 1/10. If 5 eligible players each obtain one of the drop slots, their individual chances are 1/50.

[no_threshold-11] This drop does not use the kill threshold system to improve drop chance.

[araxyte-12] This drop can only be obtained after all six Araxyte pet skins have been obtained. The first egg used unlocks Barry; the second, Mallory.

[14] This pet is not required for Insane Final Boss

[15] This pet unlocks directly from the loot interface, with no item to claim.

[gwd2_rep-17] ^ ^a ^b ^c ^d ^e ^f Drop chance is not affected by the drop increase reward from reputation.

[gwd2_paired-19] One roll for each pet per kill of the boss.

[Tess-21] 1,400 in encounters of 99% or lower enrage, 700 in encounters of 100%+ enrage.

[23] Originally had a threshold of 500

[combined_kc-27] Solo and group killcounts are combined to determine the threshold that has been reached

[28] Originally had a threshold of 250 for solo and 1000 for a group

[ryan_forum-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay Mod Ryan. "Boss pets - Drop rates!." 9 January 2015. Ninja Team Forums.

[16_July_2018_patch_notes-4] Mod Shauny. "Patch Notes (16 July 2018)." 16 July 2018. Recent Game Updates Forums. Mod Shauny: "Nex:AoD, Solak and Seiryu's boss pet threshold modifiers are now at one fifth of their base random chance."

[6] Jagex. Mod Chris L's Twitter account. 8 February 2015. (Archived from the original on 24 March 2015.) Mod Chris L: "1/5k per drop, so should be 1/1k kills"

[31_July_2017_patch_notes-7] Mod Shauny^{[source needed]}. "Patch Notes (31 July 2017)." 31 July 2017. Recent Game Updates Forums. Mod Shauny: "A threshold of 1,000 has been added to the Ancient Summoning Stone drop from Vorago."

[bombidr-10] Jagex. Mod Ramen's Twitter account. 17 April 2021. (Archived from the original on 17 April 2021.) Mod Ramen: "It's me, it was wrong. Was chatting to someone about it last night and they were convinced it was 1/100 but I remember working on it with Chris, Ryan and Harrison so updated it :)"

[common_mazcab_rates-13] Mod William. "Patch Notes (20 February 2017)." 20 February 2017. Recent Game Updates Forums. Mod William: "Two new boss pets have been added to the game, Yakaminu (Yakamaru) and Diddyzag (Beastmaster Durzag). They are a requirement for the golden Final Boss title, and have a 1/300 drop rate, with a threshold of 60 kills. They can be won in an "off-loot" kill, and will still be awarded if a player is disconnected or leaves the group after winning the pet, before managing to claim it."

[16] Mod Timbo. "Revealing Drop Rates." 20 October 2017. Developers' Blogs. Mod Timbo: "If you don't already own Lil' Tuzzy, Durzag rolls a 1 in 512 chance to drop the pet."

[gwd2_rate-18] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Jagex. Mod Ramen's Twitter account. 30 March 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "Drop rates are 1/2000 normal mode, 1/1000 challenge mode and 400 threshhold" In response to the question: "Threshes were said to be the same as nex. I haven't seen this confirmed though, maybe kyle can?"

[gwd2_paired_rate-20] Jagex. Mod Ramen's Twitter account. 30 March 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "i've allowed it to roll once for each of pets which is why they seem so common" In response to the question: "I assume it's just 1/2k > Pick one of the two for Twin Furies? Or is there conditions for a specific one?"

[22] Jagex. Mod Ramen's Twitter account. 4 July 2016. (Archived from the original on 17 January 2019.) Mod Ramen: "1400" In response to the question: "Is the Telos pet 1/1400 below 100% enr, or 1/1050?"

[ed_drop_rates-24] Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "Futon has 245 kills: You have a 4x higher chance to receive the pet on solo mode. You have not yet reached the threshold on group mode. That's a 4/300 (1/75) drop chance in solo. You remain on a 1/1500 in group. … I was actually wrong. It's a 5/300 (1/60) chance on solo. Regular roll + threshold + threshold + threshold + threshold." An example of the combined killcount threshold given in response to a player.

[ed_shared_rates-25] Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "Correct. We're VERY happy that our systems allow us to re-use the previous elite dungeon code for new ones." In response to the question: "Oh one more thing - does this same system work for ed1 (and is it likely that it will be like this for ed3?)"

[26] Jagex. Mod Orion's Twitter account. 17 May 2019. (Archived from the original on 17 May 2019.) Mod Orion: "Elite dungeon duo pet rates and thresholds btw"

[combined_ed_thresholds-29] Jagex. Mod Orion's Twitter account. 10 October 2018. (Archived from the original on 17 January 2019.) Mod Orion: "I've just looked at the code again. A month or two ago, I altered the thresholds to be more consistent. The thresholds are combined and have been for a while."

[30] Jagex. Mod Orion's Twitter account. 24 June 2018. (Archived from the original on 17 January 2019.) Mod Orion: "I believe it's 250 solo and 1k group" In response to the question: "whats the threshold of the new pet I can't find if it was stated anywhere"

[raksha_pet-31] Jagex. Mod Ryan's Twitter account. 25 December 2020. (Archived from the original on 25 December 2020.) Mod Ryan: "Merry Christmas everyone! Raksha pet drop is 1/1000 with a threshold of 200."

[rex_matriarchs-32] ^ ^a ^b ^c ^d ^e ^f Jagex. Mod Orion's Twitter account. 23 April 2021. (Archived from the original on 24 May 2021.) Mod Orion: "Rex Matriarch pet drop rates: 1/2000 with a 1000kc threshold."

[33] Jagex. RS Ninja Team - Boss Pets, Wildywyrm and Combat Improvements! (Twitch.tv livestream). 9 December 2014. (Archived from the original on 3 June 2021.)

[34] Jagex. Mod Porky's Twitter account. 29 January 2015. (Archived from the original on 30 May 2020.) Mod Porky: "Who wants to know how many boss pets have been unlocked? http://i.imgur.com/iAdN1hG.png" The referenced table contains the transcription of the attached image.

[35] Jagex. RuneScape's Twitter account. 22 September 2015. (Archived from the original on 30 May 2020.) RuneScape: "Confirmed. The Kalphite Grublet is the rarest pet. Gratz if you have one! #RSDevQA http://twitch.tv/runescape https://pbs.twimg.com/media/CPhWtRvUkAEuDVl.png" The referenced table contains the transcription of the attached image.

[36] Jagex. Mod Ramen's Twitter account. 15 March 2016. (Archived from the original on 30 May 2020.) Mod Ramen: "Here is a little something for all of you curious about how many people own Vitalis, Bombi and Raid pets https://pbs.twimg.com/media/CdlOKyVW0AAV3SD.jpg"

[37] Mod Shauny. God Wars Dungeon 2 - A Stats Megadump!. 4 May 2016. (Archived from the original on 30 May 2020.)

[38] ImRubic. TL;DW 226 - Q&A + Data Stream!. 30 August 2016. (Archived from the original on 30 May 2020.)

[39] Mod Shauny. Here's something you may enjoy IFB & FB numbers & Boss Drops, enjoy!. 25 April 2017. (Archived from the original on 28 October 2019.)

[40] The Vitalis count was given by Mod Ryan on High Level Forums; the post with this count no longer exists.

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Boss pets

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