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 - $5.95
Lightly Played Unlimited - $5.65
Moderately Played Unlimited - $5.05
Heavily Played Unlimited - $4.50
Damaged Unlimited - $3.90