Coiled Nail

Upgrade - {2}, Sacrifice a treasure token.
(At the beginning of your upkeep, if this is
attached to a creature, you may pay {2} and
sacrifice a treasure token. If you do, transform it.)
When you attach Coiled Nail to a creature,
choose either Vigilance, Reach, or Haste.
Equipped creature gets +3/+0, and gains first
strike and the chosen ability.
Equip {3}