Pirate's Hook

Specialty — Whenever equipped creature attacks,
if it shares a creature type with this Equipment,
create a Treasure token. (It's an artifact with
"{t}, Sacrifice this artifact: Add one mana of any
color.")
Equipped creature gets +2/+0 and has menace.
Equip {2} ({2}: Attach to target creature you
control. Equip only as a sorcery.)