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Killerwatt icon

Killerwatts are Slayer monsters located in the Killerwatt plane, accessed through a portal on the top floor of Draynor Manor. Level 37 Slayer and completion of Ernest the Chicken are required to kill them. Players are suggested to wear insulated boots when fighting killerwatts - not wearing them will result in taking increased damage from the killerwatt's Ranged attacks due to lightning strikes; however, this damage can still be negated with Protect from Missiles. A Dwarf multicannon cannot be set up in the killerwatt plane.

Killerwatts are much more dangerous than what their combat level may suggest; both their Ranged and Melee attacks will hit players every 1.2 seconds, much faster than the speed of an Abyssal whip or scimitars, and their melee attacks are exceptionally accurate, although Prayer flicking is still possible despite their attack speed. Using Ranged or Magic from across clouds will limit them to their Ranged attack, allowing players with protection prayers to safely complete this Slayer task. Their Ranged attack is Magic-based, and thus equipment with high Magic Defence such as dragonhide armour will provide the best protection against the Ranged attack. Contrary to popular belief, their melee attack is NOT magic based, and as such your best melee armor is most effective when using the 'baiting' method (where the player selects to attack the enemy but clicks away before landing their first attack, leading to the killerwatt only using melee attacks).

Killerwatt (docile)

A killerwatt in its docile state.

Killerwatts initially appear as floating balls of electricity, but will grow limbs if attacked. Though they aren't aggressive, they will immediately retaliate after being clicked on, and will try to get within melee range of the player before attacking. Because of this, it is possible to stop a killerwatt from using Ranged attacks entirely by clicking on it with a Melee weapon equipped and then waiting for it to attack first. A killerwatt that has targeted a player will not stop following them until they log out or leave the killerwatt plane.

Drops

100% drop

Item Quantity Rarity GE market price
Ashes Ashes 1 Always 31

Weapons/Armour

Item Quantity Rarity GE market price
Staff of fire Staff of fire 1 Uncommon 1,300
Staff of air Staff of air 1 Uncommon 1,644
Fire battlestaff Fire battlestaff 1 Uncommon 9,064
Air battlestaff Air battlestaff 1 Uncommon 9,065
Mystic fire staff Mystic fire staff 1 Uncommon 25,215

Herbs

Item Quantity Rarity GE market price
Grimy guam leaf Grimy guam leaf 1 Common 21
Grimy marrentill Grimy marrentill 1 Common 14
Grimy tarromin Grimy tarromin 1 Common 153
Grimy harralander Grimy harralander 1 Common 810
Grimy ranarr weed Grimy ranarr weed 1 Uncommon 7,294
Grimy irit leaf Grimy irit leaf 1 Uncommon 820
Grimy avantoe Grimy avantoe 1 Uncommon 1,471
Grimy kwuarm Grimy kwuarm 1 Uncommon 1,051
Grimy cadantine Grimy cadantine 1 Uncommon 1,166
Grimy lantadyme Grimy lantadyme 1 Rare 1,081
Grimy dwarf weed Grimy dwarf weed 1 Rare 581

Runes

Item Quantity Rarity GE market price
Air rune Air rune 5; 17 Common 25–85
Fire rune Fire rune 18; 45 Common 90–225
Nature rune Nature rune 8; 37 Uncommon 1,696–7,844
Chaos rune Chaos rune 4 Uncommon 396
Death rune Death rune 2 Uncommon 462
Steam rune Steam rune 2 Uncommon 188

Other

Item Quantity Rarity GE market price
Coins 100 Coins 11–21; 44; 127; 156; 200 Common Not sold
Cannonball Cannonball 3 Uncommon 537
Fire orb Fire orb 2 Uncommon 2,266
Soda ash Soda ash 4 Uncommon 236

Gem drop table

In addition to the drops above, this monster has access to the gem drop table.

Show/hide gem drop table
Item Quantity Rarity GE market price
Uncut sapphire Uncut sapphire 1 Rare 654
Uncut emerald Uncut emerald 1 Rare 859
Uncut ruby Uncut ruby 1 Rare 1,491
Nature talisman Nature talisman 1 Very rare 1,087
Uncut diamond Uncut diamond 1 Very rare 2,905
Rune javelin Rune javelin 5 Very rare 815
Loop half of key Loop half of key 1 Very rare 9,490
Tooth half of key Tooth half of key 1 Very rare 11,839
Rune spear Rune spear 1 Very rare 12,081
Shield left half Shield left half 1 Very rare 65,708
Dragon spear Dragon spear 1 Very rare 38,162


Trivia

  • *The name is a play on "kilowatt", a unit of power, with the word "killer" included to imply their hostility, or that they may give a deadly amount of watts.
  • During Enlightened Journey, and while unlocking routes for the Balloon transport system, some killerwatts can be seen standing on top of clouds, trees, rocks and buildings. Despite this, they cannot be fought anywhere outside of the killerwatt plane.