When Chthonian Nightmare enters the battlefield, you get EEE (three energy counters).
Pay X E, Sacrifice a creature, Return Cthonian Nightmare to its owner's hand: Return target creature card with mana value X from your graveyard to the battlefield. Activate only as a sorcery.
Near Mint - $0.30
Lightly Played - $0.30
Moderately Played - $0.30
Heavily Played - $0.20
Damaged - $0.20
Near Mint Spanish - $0.30
Lightly Played Spanish - $0.30
Moderately Played Spanish - $0.30
Heavily Played Spanish - $0.20
Damaged Spanish - $0.20
Foil Prices
Near Mint Foil - $0.80
Lightly Played Foil - $0.60
Moderately Played Foil - $0.60
Heavily Played Foil - $0.50
Damaged Foil - $0.40
Near Mint Foil Spanish - $0.80
Lightly Played Foil Spanish - $0.60
Moderately Played Foil Spanish - $0.60
Heavily Played Foil Spanish - $0.50
Damaged Foil Spanish - $0.40