Scheming Symmetry 
Sorcery
Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Sorcery
Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.