Mire's Toll 
Sorcery
Target player reveals a number of cards from their hand equal to the number of Swamps you control. You choose one of them. That player discards that card.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL