Antique Mage-Carbine

{2}: Exile the top card of your library or a card in
your graveyard.
Equipped creature has, "{x}{x}, {t}Tap: Cast a
copy of target Instant or Sorcery spell exiled
with Antique Mage-Gun, where X is that spell's
mana value. Activate this ability only any time
you could cast a sorcery."
Equip {3}