Wall of Nets 
Creature — Wall
Defender (This creature can't attack.) At end of combat, exile all creatures blocked by this creature. When this creature leaves the battlefield, return all cards exiled with it to the battlefield under their owners' control.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL