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 - $0.10
Near Mint Non-English - $0.10
Lightly Played - $0.10
Lightly Played Non-English - $0.10
Played - $0.10
Played Non-English - $0.10
Heavily Played - $0.10
Heavily Played Non-English - $0.10
Damaged - $0.10
Damaged Non-English - $0.10
Foil Prices
Near Mint Foil - $0.40
Near Mint Foil Non-English - $0.40
Lightly Played Foil - $0.40
Lightly Played Foil Non-English - $0.40
Played Foil - $0.30
Played Foil Non-English - $0.30
Heavily Played Foil - $0.30
Heavily Played Foil Non-English - $0.30
Damaged Foil - $0.20
Damaged Foil Non-English - $0.20