Brittle Blast 
Instant
Creatures and planeswalkers your opponents control perpetually gain "If this permanent would die, exile it instead." Brittle Blast deals 5 damage to target creature or planeswalker.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL