Varrex the Corrupted

Flying, devastate (If this creature would deal combat damage to a player, it instead deals 1 damage to that player for each card in his or her graveyard.)
Other creatures you control have deathtouch and devastate.
If Varrex the Corrupted or another artifact would be put into your graveyard from anywhere, you may exile it. If you do, each opponent loses life equal to that artifact's converted mana cost.