Crumbling Sanctuary 
Artifact
If damage would be dealt to a player, that player exiles that many cards from the top of their library instead.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Artifact
If damage would be dealt to a player, that player exiles that many cards from the top of their library instead.