Rocket Hermos Cannon (DLCS-EN061) - Dragons of Legend: The Complete Series 1st Edition

Must be Special Summoned with "The Claw of Hermos", using a Warrior monster. If this card is Special Summoned: Target 1 other face-up monster on the field; equip this card to it. It can make a second attack during each Battle Phase, also, if it attacks a Defense Position monster, inflict piercing battle damage to your opponent.