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, return target creature card with converted mana cost 3 or less from your graveyard to the battlefield tapped. It's a Zombie in addition to
its other types.
It's slow, but it's often followed by more of its kind.