Vexing Bauble 
Artifact
Whenever a player casts a spell, if no mana was spent to cast it, counter that spell.
, 
, Sacrifice this artifact: Draw a card.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyNOT LEGALvintageNOT LEGALcommanderLEGAL