Shuffling Undead

Slow (This creature enters the battlefield tapped. It doesn't untap during your next untap step.)
When Shuffling Undead untaps for the first time, search your graveyard for a creature card with converted mana cost 3 or less and put it
onto the battlefield tapped. It's a zombie in addition to it's other creature types.

It's slow, but it's often followed by more of it's kind.