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 - $194.10
Lightly Played Unlimited - $174.70
Moderately Played Unlimited - $155.30
Heavily Played Unlimited - $116.50
Damaged Unlimited - $97.10