Byrd Swoop

• Type: Attack
• Cost: 0
• Rarity: Event-only (Colorless)
• Effect: Deal 14 damage.

Upgraded

• Cost: 0
• Effect: Deal 18 damage.

A simple but absurdly efficient event-only Attack — 0 cost for 14 damage (upgraded 18). A-tier. Obtained by hatching the quest card "Byrdonis Egg" from the Byrd Nest event. Top-class damage value among 0-cost Attacks, delivering reliable damage without spending Energy. With Strength buffs it stably outputs 20+ damage for 0 cost. Its biggest strength is universal fit — every character in every build can use it without it rotting. Picked up in early Act 1, it performs across the entire run.

0 cost means no timing concerns — draw it, play it immediately. Energy-free damage doesn't interfere with main card plans and adds pure damage. Contributes to the Attack counts of Shuriken (+1 Strength per 3 Attacks) and Kunai (+1 Dexterity per 3 Attacks). Using it as Echo Form's first-played card gives 28 damage for 0 cost (upgraded 36) — extremely efficient. Against Vulnerable targets it's 21 damage (upgraded 27) for 0 cost.

• Echo Form: double trigger = 28 damage for 0 cost. Absurd value for Energy-free damage.
• Feeding Frenzy: +5 Strength this turn turns Byrd Swoop into 19 damage. Both 0-cost — perfect pairing.
• Dual Wield: copy Byrd Swoop for 2x 0-cost 14 damage. Upgraded copies twice for 3 x 14 = 42 damage.
• Red Boku (Relic): first Attack of each combat deals +8 damage. 22-damage opening shot for 0 cost.
• Shuriken (Relic): +1 Strength per 3 Attacks. 0-cost Byrd Swoop easily builds Attack count.
• Pen Nib (Relic): every 10th Attack deals double damage. 28 damage for 0 cost.