At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.
Near Mint - $1.10
Lightly Played - $0.90
Moderately Played - $0.80
Heavily Played - $0.70
Damaged - $0.60
Near Mint Spanish - $1.10
Lightly Played Spanish - $0.90
Moderately Played Spanish - $0.80
Heavily Played Spanish - $0.70
Damaged Spanish - $0.60