Justin, Lord of Annihilation

Devoid (This card has no color.)
Annihilator 3 (Whenever this creature attacks, defending player sacrifices three permanents.)
Each creature you control with annihilator has annihilator X, where X is all the annihilator
power of creatures you control. (Annihilator
power is the number in the annihilator ability.)
Partner with Annihilation Lord's Servant