Harez, Whisperer of Death

Undead creatures you control have trample (Skeletons, spirits, and zombies are undead.)
Whenever Harez, Whisperer of Death deals
combat damage to a player, instead return
that many creature cards from your graveyard
to your hand.
{3}, Create a black zombie creature token with "Dreadhorde {b}{b} (Sacrifice this creature, return it
to the battlefield at the next end step.)