Abjure 
Instant
As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell.