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 - $1.60
Lightly Played - $1.30
Moderately Played - $1.10
Heavily Played - $0.90
Damaged - $0.70
Near Mint French - $1.60
Lightly Played French - $1.30
Moderately Played French - $1.10
Heavily Played French - $0.90
Damaged French - $0.70