As Frostboil Snarl enters the battlefield, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters the battlefield tapped.
Near Mint - $0.20
Lightly Played - $0.20
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Spanish - $0.20
Lightly Played Spanish - $0.20
Moderately Played Spanish - $0.10
Heavily Played Spanish - $0.10
Damaged Spanish - $0.10