Snapcaster Shaman

Flash
When Snapcaster Shaman enters the battlefield,
target creature card in your graveyard gains
unearth until end of the turn. The unearth cost
is equal to the colored mana symbols on the card.
(Return this card from your graveyard to the
battlefield. It gains haste. Exile it at the beginning
of the next end step or if it would leave the
battlefield. Unearth only as a sorcery.)