Sauron, Lord of the Rings 
Legendary Creature — Avatar Horror
When you cast this spell, amass Orcs 5, mill five cards, then return a creature card from your graveyard to the battlefield. Trample Whenever a commander an opponent controls dies, the Ring tempts you.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL