Slipstream Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Slipstream Serpent. Morph {5}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
Near Mint - $0.25
Near Mint Non-English - $0.25
Lightly Played - $0.24
Lightly Played Non-English - $0.24
Moderately Played - $0.20
Moderately Played Non-English - $0.20
Heavily Played - $0.15
Heavily Played Non-English - $0.15
Damaged - $0.13
Damaged Non-English - $0.13
Foil Prices
Near Mint Foil - $0.25
Near Mint Foil Non-English - $0.25
Lightly Played Foil - $0.24
Lightly Played Foil Non-English - $0.24
Moderately Played Foil - $0.20
Moderately Played Foil Non-English - $0.20
Heavily Played Foil - $0.15
Heavily Played Foil Non-English - $0.15
Damaged Foil - $0.13
Damaged Foil Non-English - $0.13