Void sword

The Void sword is one of the most powerful two-handed weapons in RuneScape. The sword can be found as a rare drop from the Void dragon. The weapon fully degrades to dust after 10 hours of combat. It requires 95 Attack to wield. As with all void weapons, it deals 30% more damage to corrupted monsters. So it is extremely useful in the 3rd and above floors in the Tower of Void.

Special attack
The weapon had a special attack called Void Death. After consuming 100% of the players adrenaline, a large hole is created within a 5x5 radius of the targeted opponent. An enemies within range of the hole is dealt 1000 (500 to other players) damage per second, the hole lasts for 10 seconds and does not attack the user of the void sword. If the opponent is another player, then that player can quickly run out of the hole.