Summon Voidwalker is a core warlock ability learned at level eight. It allows a warlock to summon a Voidwalker minion. It is primarily a tanking pet, following the commands of the warlock until it is dismissed or killed. The voidwalker is the second demonic pet available to the warlock. Voidwalkers are good tanks against non-elite mobs at or near the warlock's level; therefore, they are excellent for solo play. Although they can be used in at least low level instances as a substitute for a warrior class player, due to their comparative fragility this is generally not advised.