At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with mana value equal to the number of fuse counters on Powder Keg.
NM-Mint Foil - $19.40
Lightly Played Foil - $17.50
Moderately Played Foil - $15.60
Heavily Played Foil - $13.60
Damaged Foil - $9.70
NM-Mint Foil Non English - $19.40
Lightly Played Foil Non English - $17.50
Moderately Played Foil Non English - $15.60
Heavily Played Foil Non English - $13.60
Damaged Foil Non English - $9.70