Rona, Sheoldred's Faithful 
Legendary Creature — Human Wizard
Whenever you cast an instant or sorcery spell, each opponent loses 1 life. You may cast this card from your graveyard by discarding two cards in addition to paying its other costs.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL