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 - $9.10
Lightly Played Unlimited - $8.20
Moderately Played Unlimited - $7.30
Heavily Played Unlimited - $5.60
Damaged Unlimited - $3.70