Nero, Sage of the Colossi

Protection from blue, protection from white

At the beginning of combat on your turn, put
a +1/+1 counter on target Zombie you control.

{x}{b}{t}: Return a creature with mana value X
from your graveyard to the battlefield. It's a Zombie in addition to its other types. It enters
with a +1/+1 counter on it.