Blackwing - Bora the Spear (DP11-EN002) - Duelist Pack 11: Crow 1st Edition

If you control a Blackwing monster other than Blackwing - Bora the Spear, you can Special Summon this card from your hand. During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent.