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
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			1938.8			Ascension members
Assigned by
Offensive
Max hit
0			0			1102			3300
Style						Rate
						10 ticks (6.0s)
Combat levels
1				1				90
Accuracy
0				0				2458
Defensive
Armour				Weakness			Susceptible
2178		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	3,600-5,850	Not alchemisable

Charms

Nothing	1	1	1	1
33–39%	11–15%	12–16%	19–24%	14–19%
Represents a 90% confidence range based on a sample of 727 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	17,600	0
	Grimy avantoe (m)		10 (noted)	Common	11,740	0
	Grimy dwarf weed (m)		5 (noted)	Common	54,045	0
	Grimy lantadyme (m)		5 (noted)	Common	37,450	0
	Grimy torstol (m)		5 (noted)	Uncommon	27,115	0
	Dwarf weed seed (m)		2	Common	3,866	76
	Lantadyme seed (m)		2	Common	560	76
	Torstol seed (m)		1	Uncommon	430	38
	Huge plated rune salvage		2 (noted)	Uncommon	77,552	80,000
	Dragon longsword (m)		1	Uncommon	57,314	60,000
	Off-hand dragon longsword (m)		1	Uncommon	56,744	60,000
	Sirenic scale (m)		1	Uncommon	406,108	6,000
	Banite stone spirit (m)		5	Uncommon	23,455	Not alchemisable
	Magic shieldbow (u)		45–55	Common	17,820-21,780	34,560-42,240
	Dragon arrowheads (m)		30–60	Common	9,570-19,140	9,000-18,000
	Rune arrowheads		80–120	Common	10,880-16,320	480-720
	Onyx bolt tips (m)		7–11	Uncommon	51,884-81,532	37,800-59,400
	Inert adrenaline crystal (m)		1 (noted)	Unknown	51,461	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	904,447	Not alchemisable
	Ascension Keystone Secundus (m)		1	1/384	429,510	Not alchemisable
	Ascension Keystone Tertius (m)		1	1/384	360,503	Not alchemisable
	Ascension Keystone Quartus (m)		1	1/384	331,150	Not alchemisable
	Ascension Keystone Quintus (m)		1	1/384	389,953	Not alchemisable
	Ascension Keystone Sextus (m)		1	1/384	398,066	Not alchemisable
	Ascension grips (m)		1	1/2056	6,375,328	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	15,275	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:
  • 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.
  • Ascension grips and Ascension Keystone Primus, Secundus, Tertius, Quartus, Quintus, and Sextus drops

Update history

The update history project is a work-in-progress – not all updates to this topic may be covered below. 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.