Voidwalker

Voidwalker is a focus in Destiny used by Warlocks. Voidwalker's super ability is Nova Bomb, a ranged attack that lets you "hurl an explosive bolt of Void Light at the enemy, disintegrating those caught within its blast." Voidwalker has a variety of other offensive abilities as well, but has been described by Bungie as a "glass cannon" focus that does not provide much in the way of defensive power. Further specifics about the Voidwalker focus are not yet known.