Legio Primus

"Primus" redirects here. For the keystone, see Ascension Keystone Primus.

For the pet version, see Legio Primulus.

This article has a strategy guide. All information on mechanics, setups, and tactics is on the subpage.

Legio Primus
Release			4 June 2013 (Update)
Members			Yes
Actions			Attack, Examine
Race			Ascension members
Examine
A powerful Order of Ascension unit.
Combat info
Level			LP			XP			XP
304			30,000			3,591			1,185
Equipment XP (2H/MH & Armour/OH)
215 / 143 / 71
Aggressive						Poisonous
Slayer
Level			XP			Category
95			1,938.8			Ascension members
Assigned by
Offensive
Max hit
0			0			1,102			3,300
Style						Rate
						10 ticks (6.0s)
Combat levels
1				1				90
Accuracy
0				0				2,458
Defensive
Armour				Weakness			Susceptible
2,178		85
Affinities
70			7			70			15
Immunities
Immune			Immune			Immune			Not immune
Advanced data
NPC ID				17149
Links				bestiary • MRND
FAQ • doc

Legio Primus is one of the bosses in the Monastery of Ascension. Accessing him requires an Ascension Keystone Primus.

As with all the bosses in the Monastery of Ascension, Legio Primus attacks primarily with a combination of a basic magic attack and a lightning attack - the latter of which is focused in a 2x2 square (expanding to a 3x3 square and then to a 4x4 square over two game ticks) which deals high, magic-style damage to the player if they stand where the lightning falls. (The lightning attack is always affixed to the player's location, and thus continuously moving throughout the fight is imperative.)

Like all of the Legiones within the Monastery of Ascension, Legio Primus has a special ability which activates as his life points are gradually depleted in 25% intervals (every 7,500 life points drained) until death - occurring a total of three times throughout the fight. His special ability, however, is that both his basic magic attack and lightning attack will increase in potency as his health is depleted incrementally - much like the special ability of Dharok the Wretched, only capped in 7,500-life point intervals. As with all other Legiones, his special ability's activation is signalled by an overhead chat message.

Drops

100% drop

	Item		Quantity	Rarity	GE Price	High Alch
	Ascension shard (m)		16–26	Always	2,400-3,900	Not alchemisable

Charms

Nothing	6	6	6	6
6–7%	18–20%	18–19%	32–34%	23–24%
Represents a 90% confidence range based on a sample of 8,676 kills. 6 items are dropped at a time. Add data to the log (requires JavaScript).

Main drop

	Item		Quantity	Rarity	GE Price	High Alch
	Coins		37,000–40,000	Common	37,000-40,000	37,000-40,000
	Coins		57,000–60,000	Uncommon	57,000-60,000	57,000-60,000
	Grimy snapdragon (m)		10 (noted)	Common	14,840	0
	Grimy avantoe (m)		10 (noted)	Common	9,940	0
	Grimy dwarf weed (m)		5 (noted)	Common	54,020	0
	Grimy lantadyme (m)		5 (noted)	Common	43,220	0
	Grimy torstol (m)		5 (noted)	Uncommon	34,995	0
	Dwarf weed seed (m)		2	Common	10,418	76
	Lantadyme seed (m)		2	Common	704	76
	Torstol seed (m)		1	Uncommon	984	38
	Huge plated rune salvage		2 (noted)	Uncommon	77,148	80,000
	Dragon longsword (m)		1	Uncommon	57,924	60,000
	Off-hand dragon longsword (m)		1	Uncommon	57,726	60,000
	Sirenic scale (m)		1	Uncommon	263,896	6,000
	Banite stone spirit (m)		5	Uncommon	1,515	Not alchemisable
	Magic shieldbow (u)		45–55	Common	19,800-24,200	34,560-42,240
	Dragon arrowheads (m)		30–60	Common	11,430-22,860	9,000-18,000
	Rune arrowheads		80–120	Common	11,520-17,280	480-720
	Onyx bolt tips (m)		7–11	Uncommon	49,875-78,375	37,800-59,400
	Inert adrenaline crystal (m)		1 (noted)	Unknown	1,390	2,400
	Crystal triskelion fragment 1 (m)		1	Very rare	Not sold	Not alchemisable
	Crystal triskelion fragment 2 (m)		1	Very rare	Not sold	Not alchemisable
	Crystal triskelion fragment 3 (m)		1	Very rare	Not sold	Not alchemisable

Tertiary drops

	Item		Quantity	Rarity	GE Price	High Alch
	Ascension Keystone Primus (m)		1	1/384	640,362	Not alchemisable
	Ascension Keystone Secundus (m)		1	1/384	290,094	Not alchemisable
	Ascension Keystone Tertius (m)		1	1/384	265,765	Not alchemisable
	Ascension Keystone Quartus (m)		1	1/384	189,849	Not alchemisable
	Ascension Keystone Quintus (m)		1	1/384	191,552	Not alchemisable
	Ascension Keystone Sextus (m)		1	1/384	215,565	Not alchemisable
	Ascension grips (m)		1	1/2056	7,378,714	30,000
	Ascension signet I (m)		1	1/50	Not sold	Not alchemisable
	Corrupted Ascension signet I (m)		1	Very rare	Not sold	Not alchemisable
	Starved ancient effigy (m)		1	Very rare	Not sold	Not alchemisable
	Order journal page (m)		1	Uncommon	Not sold	Not alchemisable

Universal drops

Universal drops are dropped by nearly every monster outside of Daemonheim.

These items are dropped alongside main drops.

	Item		Quantity	Rarity	GE Price	High Alch
	Key token		1	Rare	Not sold	Not alchemisable
	Mimic kill token (m)		1	Very rare	17,599	Not alchemisable

Achievements

• I Got This ( 40) – Defeat each of the six Legiones consecutively without leaving the Ascension dungeon.
• Stand Your Ground ( 50) – Defeat each of the six Legiones without moving.
• We Are Legion ( 0) – Obtained a collection of unique drops from Legiones.
• Descension I ( 5) – Defeat any of the Ascension Legiones. (X/5)
• Descension II ( 5) – Defeat any of the Ascension Legiones. (X/10)
• Descension III ( 5) – Defeat any of the Ascension Legiones. (X/25)
• Descension IV ( 5) – Defeat any of the Ascension Legiones. (X/50)
• Descension V ( 5) – Defeat any of the Ascension Legiones. (X/75)
• Descension VI ( 5) – Defeat any of the Ascension Legiones. (X/100)
• Let It Go, Legio ( 0) – Obtained a collection of unique drops from Slayer monsters located within Feldip Hills.

Update history

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!

• patch 11 January 2021 (Update):
  • Various bosses around RuneScape have taken their Santa Hats off for another year.

• patch 4 May 2020 (Update):
  • Runite stone spirits have been replaced by banite stone spirits.

• update 4 June 2013 (Update):
  • Added to game.

Trivia

• Legio Primus is roughly Latin for "First Legion". However Legio is a feminine noun, while Primus is a masculine adjective; the correct form would be Legio Prima. Legions were the largest units of the Roman army and there were 6 in a whole army, hence there are six legiones in the Monastery.
• A few days after release, the Legio's drop table was updated; drops such as bowstrings were replaced with more valuable items such as the magic shieldbow (u), and the drop rate of the signets were increased from 1/64 to 1/50.