When Mesmeric Fiend enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card. When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.
NM-Mint - $0.60
Lightly Played - $0.60
Moderately Played - $0.60
Heavily Played - $0.50
Damaged - $0.40
NM-Mint Non English - $0.60
Lightly Played Non English - $0.60
Moderately Played Non English - $0.60
Heavily Played Non English - $0.50
Damaged Non English - $0.40