Abomination of the Undead

If a zombie would go to the graveyard and it was
not dealt damage equal to at least twice its power
this turn, it phases out instead.
During your upkeep, if there are 10 or more
zombies in play, gain 2 Life and draw two cards.
{b}{b}: All zombies are +1/+0. Use this ability no
more than once per turn.
They fed without mercy.