Ogre Battlecaster

First strike

Whenever Ogre Battlecaster attacks, you may cast target instant or sorcery card from your graveyard by paying RR in addition to its other costs. If that spell would be put into a graveyard, exile it instead. When you cast that spell, Ogre Battlecaster gets +X/+0 until end of turn, where X is that spell's mana value.