Death Mage

When a creature enters the battlefield under
your control, put a +1/+1 counter on it.
{b}{g}{u}, {t}: Return target creature from your
graveyard to the battlefield. It has base
power and toughness 0/0 and is a zombie in
addition to its other types.
{3}{b}{g}{u}: Put a +1/+1 counter on each creature you control.