Killing cave horrors
Profit Mos Le'Harmless Caves
209,200 per hour
Skill requirements

58 Slayer-icon
70 Magic-icon, Attack-icon or 50 Ranged-icon recommended
70 Defence-icon recommended

Item requirements

Level 70+ Magic/Ranged gear or Dragonhide armour (Melee armour not recommended since they use Magical melee)
Witchwood icon
Light source
Ectophial (optional)
Some food especially if using Melee

Quest requirements Inputs


Other requirements Outputs

Unlocked the Trouble Brewing minigame teleport (optional but helps for returning)

0.2 x Black mask (10) (209,218.2421875)

Location Experience gained

25,300 Multicombat experience
8,400 Hitpoints-icon experience

The profit rate assumes 115 kills per hour. Your actual profit may be higher or lower depending on your speed.

Cave horrors, requiring 58 Slayer to kill, drop the black mask, worth 931,476, at a believed 1/512 rate. They are located in the Mos Le'Harmless Caves, which requires Cabin Fever to be completed. Also. players will need a light source and a witchwood icon to avoid taking a great deal of damage. The easiest way to get to the caves would be teleporting to Port Phasmatys via the Ectophial and taking Bill Teach's boat to Mos Le'Harmless and travelling east from the town. Afterwards, be sure to unlock the Trouble Brewing minigame teleport once you arrive so that you may return with ease.

The cave horrors are a bit spread out, but they possess low Defence and only have 55 Hitpoints, so it's easy to take them down with any combat class. Ranged or Melee is preferred, however, in which there's a safespot near the entrance for rangers to use. With a good weapon and decent armour, they don't do enough damage to be very troublesome. Also, with mid-to-high level equipment, it's possible to kill upwards of 360 cave horrors per hour, thus increasing the profit margin to 654,944.06. They have very few drops besides the black mask worth picking up, although nature runes and various alchables and herb seeds may be worth picking up. At this rate, you should average about one black mask every hour and a half, although this is not at all guaranteed.

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