Legio Tertius

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All information on mechanics, setups, and tactics is on the subpage.
Legio Tertius
Release4 June 2013 (Update)
MembersYes
OptionsAttack, Examine
RaceAscension members
ExamineA powerful Order of Ascension unit.
Combat info
Combat level304
Life points30,000
AggressiveYes
PoisonousNo
Combat experience
XP1,500
XP1,829.2
XP495
XP135 (two-handed)
67 (one-handed and armour)
Slayer info
Level95
AssignmentAscension members
MasterDuradel: 100–125
Kuradal: 100–125
Morvran: 120–150
Laniakea: 120–150
Offensive
Max hit
001,1020? (edit)
StyleRate
10 ticks (6.0s)
Combat levels
11901
Accuracy
002,4580
Defensive
ArmourWeaknessSusceptible
2,17885
Base hit chance
7077015
Immunities
ImmuneImmuneImmuneNot immune
Advanced data
NPC ID17151
Linksbestiary • MRND
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Legio Tertius is the third of the bosses in the Monastery of Ascension. Accessing him requires an Ascension Keystone.

As with all the bosses in the Monastery of Ascension, Legio Tertius 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 Tertius 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 he summons other ascended to aid him throughout the fight. As with all other Legiones, his special ability's activation is signalled by an overhead chat message. In total, he summons three Rorarii at 75% life points, one Gladius at 50% life points, and finally a Capsarius at 25% life points remaining. Once the capsarius uses it healing buff on Tertius, it will need to be killed - though it is possible to kill Tertius before the capsarius focuses on him, using a combination of high-level weapons and powerful, well-timed abilities. The ascended he summons do not drop anything. When Tertius dies, all his summoned ascended also die.

Location

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Drops

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The following drop rates are provided by Jagex, unless otherwise specified.

The average Legio Tertius kill is worth 87,929 coins.

Weapons

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Seeds

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Materials

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Other

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  1. ^ 1/1,940 with tier 3 luck or higher.
  2. ^ 1/1,940 with tier 3 luck or higher.
  3. ^ 1/1,940 with tier 3 luck or higher.

Tertiary

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  1. ^ Only dropped until all journal pages are found. Does not drop in Rush of Blood.
  2. ^ Increased to 1/49 with tier 4 luck.
  3. ^ Dropped only while on a Slayer assignment.
  4. ^ Has a base drop rate of 1/1,000, with a threshold of 1,200.
  5. ^ Only dropped if fewer than five ancient effigies are owned. The drop rate is decreased for every effigy owned, up to four effigies.

Charms

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The quantity of charms dropped can be affected by a number of boosts including Familiarisation triple charm drops, Fang of Mohegan, and seasonal events such as Winter Weekends.

Achievements

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Legiones achievements

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  • Legiones ( 0) – Defeat any of the Ascension Legiones. (X/1)
  • Descension:
    • Descension I ( 5) – Defeat any of the Ascension Legiones. (X/5)
    • Descension II ( 10, 2) – 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)
  • Legiones Speed Killer:
  • I Got This ( 15, 3) – Defeat each of the six Legiones consecutively without leaving the Ascension dungeon.
  • Stand Your Ground ( 15, 3) – Defeat each of the six Legiones without moving.
  • Lightning Doesn't Strike Once ( 15, 3) – Defeat any of the six Legiones solo without being hit by their 'Lightning' attack.

Boss Pet

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  • Legio Tertiolus ( 0) – Unlock the Legio Tertiolus pet from Legio Tertius in the Ascension Dungeon.

Boss Log

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Dialogue

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Update history

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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 30 June 2025 (Update):
    • Made a change to unify the six Ascension keystones into one keystone.
  • hidden 11 September 2023 (Update):
    • The 50% combat experience reduction on bosses has been removed. Bosses now give 50 combat experience per 1,000 life points, like most other monsters in the game.
  • update 7 November 2022 (Update):
    • Herb drops replaced with their seeds instead.
  • 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.
  • patch 7 October 2019 (Update):
    • Legio Tertius' boss defence buff will no longer persist after Capsarius has been killed.
  • patch 3 August 2015 (Update):
    • Familiars now deal less damage to Legio Tertius while he is being healed by a Capsarius.
  • ninja 29 June 2015 (Update):
    • Legio Tertius's rorarius, gladius and capsarius guards are now killed automatically when their master falls in battle.

Trivia

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  • Legio Tertius is roughly Latin for "Third Legion". However Legio is a feminine noun, while Tertius is a masculine adjective; the correct form would be Legio Tertia. 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.
  • Legio Tertius' summoned ascended did not die with him prior to an update on 29 June 2015 - players had to kill them after he died, or leave the room and create a new instance.
  • Some time after the release the drop rate of the signet was increased from 1/64 to 1/50.

References

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  1. ^ a b c Mod Timbo. Revealing Drop Rates. Existing Game Content Forums. 13 October 2017. (Archived from the original on 10 December 2017.)