The Praying Mantis

The Praying Mantis (#617)
Released		3 September 2025 (Update)
Members		Yes
Description		Defeat the Doom of Mokhaiotl levels 1-8 without restoring your prayer points through any method.
Tier		Grandmaster
Monster		Doom of Mokhaiotl
Type		Restriction
League region		Varlamore✓
Advanced data
ID		617

The Praying Mantis is a grandmaster combat achievement which requires defeating the Doom of Mokhaiotl at delve level 8 without restoring any prayer points.

Having a high Prayer level is beneficial for this achievement. While possible to do with base 99 Prayer, it is strongly encouraged players pre-boost pray with an ancient mace special inside their home against a combat dummy.

As Doom's attacks deal damage on impact, players can simply flick the incoming standard attacks. Avoid using offensive prayers outside of the car phase unless you are flicking. If having trouble flicking, a combination of Devout Boots, Ring of the gods (i), and Dragonbone necklace combined with the typical Elite Void will give a prayer bonus of +31, which halves prayer drain at the cost of some DPS.

This achievement additionally includes prayer restoration caused by melee punishes if applicable; if the holy water that results from a melee punish restores prayer, the player will fail the achievement. This will not occur if the player's prayer is at or above their base level; e.g if the player's Prayer level is 88 but their boost puts them at 122, they would not fail the achievement as no prayer points were restored. Using the Ancient mace special attack to boost prayer above one's level during the encounter, however, will fail the achievement.

Otherwise, try to unequip the main weapon and attack Doom unarmed; unless Doom has very little health, a melee punish is unlikely to kill. To be extra safe, a melee splash weapon such as the cursed goblin hammer can be used, which is guaranteed to do zero damage.

Saradomin brews can still be used, though this requires regular restore potions or menaphite remedies. The latter is more consistent, although it only restores on 15 second intervals.

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

v t e Combat Achievements
	Ghommal Laidee Gnonock Bosses interface
Tiers	Easy Medium Hard Elite Master Grandmaster All tasks (sorted by tier) Free-to-play
Rewards	Antique lamps Easy Medium Hard Elite Master Grandmaster Ghommal's hilt 1 2 3 4 5 6 Dragon hunter crossbow Black Turquoise Slayer helmet TzTok (imbued) Vampyric (imbued) TzKal (imbued) Other Ghommal's lucky penny Ghommal's avernic defender 5 Ghommal's avernic defender 6