アイアンクラッド

• Type: Power
• Cost: 1
• Effect: This turn, whenever you lose HP, gain 1 Strength.

Upgraded

• Cost: 1
• Effect: This turn, whenever you lose HP, gain 2 Strength.

A Cost 1 power granting 1 Strength (2 upgraded) every time you lose HP that turn. It serves as the core of HP-sacrifice builds — in turns where you run multiple HP-loss cards, it nets a large Strength payoff at once. Combined with Bloodletting (lose 3 HP for 3 Energy), Reckless Charge (lose 1 HP), and Hemokinesis (lose 2 HP), you can pile up 5-10+ Strength in a single turn. Upgraded, each HP loss grants 2 Strength, so for the same HP loss the Strength gain is doubled. In decks that actively embrace HP loss, it rivals Inflame and Demon Form as a powerhouse Strength source.

Play Blood Boil at the very start of the turn, then chain HP-loss cards (Bloodletting, Hemokinesis, Reckless Charge, Offering) to stack Strength rapidly. Upgraded, the flow of Bloodletting (lose 3 HP) -> Blood Boil -> gain 6 Strength is the baseline. Follow up with high-damage attacks like Whirlwind or Dissect to maximize the Strength gains. With Crimson Robe (HP loss at turn start) on the board, Blood Boil and Crimson Robe link up automatically, delivering a Strength buff at the start of every turn.

• Bloodletting: Skill that loses 3 HP to gain 2-3 Energy. Using it with Blood Boil active simultaneously nets 3-6 Strength for a strong combo.
• Crimson Robe: Power with turn-start HP loss and Block gain. Links with Blood Boil each turn so the Strength buff triggers automatically.
• Hemokinesis: High-damage attack that loses 2 HP. With Blood Boil active it also nets 2-4 Strength, amplifying later attacks.
• Reckless Charge: AoE attack that loses 1 HP. Pairs with Blood Boil for 1-2 Strength per swing, the more you attack the stronger it gets.
• Offering: Skill that loses 6 HP for huge resources. With Blood Boil active, nets an explosive 6-12 Strength in a single use.

• Ironclad Strength Build (S-tier)
• Ironclad Whirlwind Energy Build (S-tier)
• Ironclad HP Sacrifice Build (Key Card) (A-tier)