アイアンクラッド

• Type: Attack
• Cost: 3
• Effect: Deal 16 damage to all enemies. At the start of your turn, play it from the Exude pile.

Upgraded

• Cost: 3
• Effect: Deal 21 damage to all enemies. At the start of your turn, play it from the Exude pile.

A Cost 3 AoE dealing 16 damage (21 upgraded) to all enemies, with the special trait that it auto-plays from the Exude pile at turn start. Even after Exude, it continues firing every turn as a persistent damage source. In Exude decks, one cast equals an infinite 0-Energy AoE of 16-21 per turn — an overwhelming payoff. Hugely valuable in multi-enemy fights and strongly recommended as an Exude-deck finisher.

Play it once to trigger Exude; afterward, it auto-fires each turn for free. Cost 3 is a one-time investment, but the return is enormous. Combined with Exude decks (War Drum, Searing Contract, Havoc), it stacks Exude while blasting the board every turn. With Strength buffs (Inflame, Demon Form), the auto-fire damage compounds into monstrous late-game output. Since it persists across turns, early adoption in the run is especially strong.

• Inflame / Demon Form: Strength-buff powers. Howl from Beyond's per-turn auto-fire rides Strength, compounding damage.
• War Drum: Turn-start Exude power. Boosts the Exude deck overall and pairs well with Howl from Beyond.
• Cruel: Power increasing damage to Weak enemies. Maintaining Weak supercharges the per-turn auto-fire.
• Ash Strike: Attack scaling with Exude count x3-4. Alongside Howl from Beyond, forms a strong Exude-deck finisher pair.
• Thunderclap / Bash: Weak-appliers. Apply Weak so Cruel's bonus rides Howl from Beyond's AoE.

• Ironclad Will-o-Wisp Exude Combo Build (B-tier)
• Ironclad Exude Build (S-tier)