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 - $0.60
Near Mint Non English - $0.60
Lightly Played - $0.60
Lightly Played Non English - $0.60
Moderately Played - $0.50
Moderately Played Non English - $0.50
Heavily Played - $0.50
Heavily Played Non English - $0.50
Damaged - $0.40
Damaged Non English - $0.40