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 - $1.30
Lightly Played - $1.30
Moderately Played - $1.20
Heavily Played - $1.10
Damaged - $0.90
NM-Mint Non English - $1.30
Lightly Played Non English - $1.30
Moderately Played Non English - $1.20
Heavily Played Non English - $1.10
Damaged Non English - $0.90