Summon the Ancestor Spirits

At the beginning of combat on your turn choose
an orc creature card in your graveyard. Put a
token onto the battlefield that's a copy of that card,
except it is a spirit in addition to it's other types,
has haste, must attack this turn if able, and has
"At the beginning of the next end step, sacrifice
this creature."
"Sometimes the spirits fight with me, sometimes they
fight for me." - Zavala, Witch Doctor