Xantid Swarm 
Creature — Insect
Flying Whenever this creature attacks, defending player can't cast spells this turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Creature — Insect
Flying Whenever this creature attacks, defending player can't cast spells this turn.