Servant of Apocalypse

deathtouch
when Servant of Apocalypse enters the battlefield, destroy all creatures, draw a card for each creature destroyed
{b}{b}{b} put target creature from your graveyard into the battlefield, it is a Necro as well as its other subtypes
{b}{b}{b}{b}{b}{b} Servant of Apocalypse gains +1/+1 for every Necro on the battlefield