Surestrike Trident (Foil) (DST) from Darksteel, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Foil
• Artist: Ben Thompson
• Card Text:
  Equipped creature has first strike and “T, Unattach Surestrike Trident: This creature deals damage equal to its power to target player.”
  Equip 4 (4: Attach to target creature you control. Equip only as a sorcery. This card comes into play unattached and stays in play if the creature leaves play.)