When a Blackwing monster is Normal Summoned to your side of the Field, you can add 1 Blackwing monster from your Deck to your hand that has less ATK than that monster.
Near Mint Unlimited - $87.10
Lightly Played Unlimited - $82.80
Moderately Played Unlimited - $74.10
Heavily Played Unlimited - $61.00
Damaged Unlimited - $52.30