|Release date||20 November 2012 (Update)|
|Rend your target, dealing up to 188% of both weapons[sic] damage instantly and causing an additional 313% of weapon damage over 6 seconds.|
Click animation for full size
Massacre is an ultimate Attack ability found in the Ability Book. It requires level 66 Attack and for the player to be dual wielding weapons. It has a cooldown time of 60 seconds. When activated, the player deals 37.6-188% of ability damage to their target and causes the target to take additional damage over 6 seconds, dealing 5 hits of 62.66% ability damage (313.33% ability damage total).
Unlike most abilities, the bleed damage caused has no damage range - it is always 62.66%, regardless of what the first hit is. This makes the overall damage range of the ability 350.93-501.33%, average 426.13%. The bleed is not affected by most damage-boosting effects (see Dismember for list); the first hit is, though.
The ranged equivalent of this ability is Deadshot; however Deadshot does not require the player to dual wield weapons and is unlocked at a much lower level, and additionally only has 30 seconds cooldown instead of 60 seconds.
- The ability requires 66 Attack to use, which was based off of the Falador Massacre which happened on 06/06/06.