Recurring Nightmare
2 colorless +1 black
enchantment
 
"sacrifice a creature,return Recurring Nightmare to owner's hand:
Put target creature card from your graveyard into play.Play this
ability as a sorcery."
 
This card combines well with almost any creature that does an
ability when it comes into play. Especially "Squirrel Wrangler".
It can do lots of tokens.