Vengeful Dreams 
Instant
As an additional cost to cast this spell, discard X cards. Exile X target attacking creatures.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
As an additional cost to cast this spell, discard X cards. Exile X target attacking creatures.