Card Tips:Swallow's Cowrie
- This card can be searched by "Quick Booster", "Spell Calling", "Miracle of the Supreme King", "Mecha Phantom Beast Jaculuslan", and other generic searchers.
- Even outside a Blackwing Deck, this card makes "Blackwing - Breeze the Zephyr" a useful card to include in any deck that runs Level 3 Winged-Beast monsters to access Synchro plays, as it can be Special Summoned right after being added from your deck to your hand by this card's effect. Otherwise it can serve just as an extender.