Ruin Geist

Protection from mana value 2 or less
{2}{w}{r}, Exile an artifact card from your
graveyard: Ruin Geist gets +X/+0 and gains
flying until end of turn, where X is that artifact
card's mana value.
{3}{w}{r}, Sacrifice an artifact: Return Ruin Geist
from your graveyard to the battlefield.