Enter the God Eternals

“Enter the God-Eternals deals 4 damage to target creature and you gain life equal to the damage dealt this way. Target player puts the top four cards from their library into their graveyard. Amass 4. <em>(Put four +1/+1 counters on an Army you control. If you don't control one, create a 0/0 black Zombie Army creature token first.)</em>”