Gorgoth, the Resurrector

When Gorgoth, the Resurrector enters the game, return up to 3 cards from your graveyard to play.
The constitution of Gorgoroth is equal to *, where * is the number of Zombies cards present in all graveyards and in game.
{t}{1}{b}: Regenerate target creature
"Little demons came out of his bowels feeding on his own flesh"