If you control a Blackwing monster other than Blackwing - Gale the Whirlwind, you can Special Summon this card from your hand. Once per turn, you can halve the ATK and DEF of 1 face-up monster your opponent controls.
Near Mint Unlimited - $5.90
Lightly Played Unlimited - $5.30
Moderately Played Unlimited - $4.70
Heavily Played Unlimited - $3.00
Damaged Unlimited - $2.40