Darkness Is Your Ally?

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Darkness Is Your Ally?
Darkness Is Your Ally? (#619)
Released 3 September 2025 (Update)
Members Yes
Description Defeat the Doom of Mokhaiotl levels 1-8 without equipping a demonbane weapon.
Tier Grandmaster
Monster Doom of Mokhaiotl
Type Restriction
League region Varlamore Varlamore✓
Advanced data
ID 619

Darkness Is Your Ally? is a grandmaster combat achievement which requires defeating the Doom of Mokhaiotl at delve levels 1 through 8 without equipping a demonbane weapon.

Strategy

This achievement is best tackled with a twisted bow. Players can opt for the bow of faerdhinen otherwise, but note that deeper delves will be much more difficult with lower DPS.

Players are prohibited from using demonbane weapons such as darklight, arclight, emberlight, scorching bow, holy water and purging staff for the duration of the achievement.

In order to handle demonic larvae, players are recommended to bring fast-hitting melee and ranged weapons (any 4-tick multi-hit weapons, such as sulphur blades and 2-tick ranged weapons such as knives on rapid), as players will incur an attack delay when killing larvae without demonbane weapons or spells. For magic, players should bring a skull sceptre or slayer's staff with runes for Superior Demonbane. While a demonbane spell is being used, the sceptre/staff is not considered a demonbane weapon and they can autocast the spell.

During the shield phase on delve 3+, players must use a demonbane spell in order to reset Doom's charge progress as they cannot use a scorching bow or demonbane sword, so make sure to cast a demonbane spell at least once before Doom reaches the 75% threshold.

Other tasks

There are 15 Combat Achievement tasks (totalling 79 points) available for Doom of Mokhaiotl.

NameDescriptionTypeTierComp%
Doom AdeptDefeat the Doom of Mokhaiotl at delve level 3.Kill Count Elite (4 pts)12.3%
Doom CrawlerDefeat the Doom of Mokhaiotl level 1 in less than 30 seconds.Speed Elite (4 pts)2.7%
Exposed DoomDefeat the Doom of Mokhaiotl during its Melee charge phase.Mechanical Elite (4 pts)11%
Mokhaiotl DriftDefeat the Doom of Mokhaiotl at level 8 or above before he finishes the first burrow phase.Mechanical Master (5 pts)2.9%
Grub PatrolDefeat the Doom of Mokhaiotl levels 1-8 without ever letting a grub be absorbed.Mechanical Master (5 pts)3.1%
Doom ChaserDefeat the Doom of Mokhaiotl levels 1-8 in less than 10:00.Speed Master (5 pts)2.5%
Mine's BetterDefeat the Doom of Mokhaiotl levels 1-8 whilst always wearing a shield.Restriction Master (5 pts)0.9%
Doom VeteranDefeat the Doom of Mokhaiotl at delve level 8.Kill Count Master (5 pts)5.2%
Duel of MokhaiotlDefeat the Doom of Mokhaiotl levels 1-8 whilst only damaging the boss with one-handed melee attacks.Restriction Grandmaster (6 pts)0.7%
Darkness Is Your Ally?Defeat the Doom of Mokhaiotl levels 1-8 without equipping a demonbane weapon.Restriction Grandmaster (6 pts)1.1%
Perfect DoomDefeat the Doom of Mokhaiotl levels 1-8 without taking any damage from the boss, letting any grubs be absorbed, or stepping in acid blood.Perfection Grandmaster (6 pts)1.1%
The Praying MantisDefeat the Doom of Mokhaiotl levels 1-8 without restoring your prayer points through any method.Restriction Grandmaster (6 pts)1.1%
Doom RacerDefeat the Doom of Mokhaiotl levels 1-8 in less than 7:15.Speed Grandmaster (6 pts)0.6%
It's Dark Down HereDefeat the Doom of Mokhaiotl at delve level 16.Stamina Grandmaster (6 pts)1.5%
Mopping upClear at least 8 acid splats in a single Volatile Earth special attack.Mechanical Grandmaster (6 pts)2.7%

Trivia

  • The name of this achievement is a reference to a line spoken by Bane in the 2012 movie The Dark Knight Rises.

Source

Content from the Old School RuneScape Wiki (operated by Weird Gloop), licensed under CC BY-NC-SA 3.0.

Source siteOld School RuneScape Wiki
Canonical sourceDarkness Is Your Ally?
Content licenseCC BY-NC-SA 3.0
License statusdeclared
PictureDoom of Mokhaiotl · file details

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