Pulse of the Hunter Maze 
Instant
Target opponent gets a poison counter. Then, if you have more poison counters than that player, return Pulse of the Hunter Maze to its owner's hand.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL