Stone of Erech 
Legendary Artifact
If a creature an opponent controls would die, exile it instead.
,
, Sacrifice Stone of Erech: Exile target player's graveyard. Draw a card.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL