Nightveil Specter 
Creature — Specter
Flying Whenever this creature deals combat damage to a player, that player exiles the top card of their library. You may play lands and cast spells from among cards exiled with this creature.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL