Trample Goblin Rock Sled doesn't untap during your untap step if it attacked during your last turn. Goblin Rock Sled can't attack unless defending player controls a Mountain.
Near Mint - $0.25
Lightly Played - $0.25
Moderately Played - $0.25
Heavily Played - $0.25
Damaged - $0.25
Near Mint Spanish - $0.25
Lightly Played Spanish - $0.25
Moderately Played Spanish - $0.25
Heavily Played Spanish - $0.25
Damaged Spanish - $0.25