Riddlemaster Sphinx 
Creature — Sphinx
Flying (This creature can't be blocked except by creatures with flying or reach.) When this creature enters, you may return target creature an opponent controls to its owner's hand.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL