Skull Kid, Majora's Puppet

When Skull Kid, Majora's Puppet enters the
battlefield, you may exile target creature with
converted mana cost 4 or less from your
graveyard. If you do, deal damage to all
opponents and gain life equal to the exiled
creature's converted mana cost.
{b}{g},{t}: Return target creature with converted
mana cost 2 or less from your graveyard to the
battlefield.