Choose target creature or planeswalker. You get {E}{E}{E} (three energy counters), then you may pay any amount of {E}. Galvanic Discharge deals that much damage to that permanent.
"Remember, if you find a rock making crackly noises, just put it back. Carefully."
—Bo, Great Desert prospector
Near Mint - $800
Lightly Played - $600
Moderately Played - $600
Heavily Played - $500
Damaged - $400
Near Mint Spanish - $800
Lightly Played Spanish - $600
Moderately Played Spanish - $600
Heavily Played Spanish - $500
Damaged Spanish - $400
Foil Prices
Near Mint Foil - $800
Lightly Played Foil - $600
Moderately Played Foil - $600
Heavily Played Foil - $500
Damaged Foil - $400
Near Mint Foil Spanish - $800
Lightly Played Foil Spanish - $600
Moderately Played Foil Spanish - $600
Heavily Played Foil Spanish - $500
Damaged Foil Spanish - $400