アイアンクラッド

• Type: Attack
• Cost: 2
• Effect: Deal 5 damage twice. Gain 3 Strength. Enemy gains 1 Strength.

Upgraded

• Cost: 2
• Effect: Deal 6 damage twice. Gain 4 Strength. Enemy gains 1 Strength.

A Cost 2 attack dealing 5 damage x2 (6 x2 upgraded) while granting 3 Strength (4 upgraded) to yourself, with the drawback that the enemy also gains 1 Strength. The Strength buff increases the damage of subsequent attacks, so in attack-heavy decks this card self-buffs while attacking. The enemy Strength +1 is a risk, but with Weak- and Frail-applying cards around to suppress enemy damage, it becomes negligible. Strength 3 (4 upgraded) from a single card is a massive single-shot value, and repeated use compounds your Strength, so scaling in long fights is very strong.

Use early to stack Strength and ride that buff into later high-damage attacks. Do not overfear the enemy Strength +1 — Bash and Uppercut apply Weak/Frail to cut the enemy's effective damage in exchange. Combined with Demon Form, Strength growth per turn accelerates, and by late game you become a high-damage fighter. Secure consistent Block sources (Shrug It Off, Flame Barrier) before running this card so you can absorb the enemy's Strength gain. The more you replay it, the more Strength you stack, so rotate the deck faster and recycle it similarly to Rampage.

• Demon Form: Power that permanently gains Strength at turn start. Combined with Fight Me!'s Strength buff, it rapidly stacks Strength.
• Inflame: Power that immediately grants 2-3 Strength. Pairing with Fight Me! locks in Strength even faster.
• Bash / Uppercut: Weak and Frail applicators. They offset Fight Me!'s enemy Strength +1 drawback.
• Whirlwind: X-cost AoE. All hits ride Fight Me!'s stacked Strength for massive damage increase.
• Dismantle: Attack that hits twice on Weak enemies. After stacking Strength with Fight Me!, landing Dismantle twice delivers huge damage.

• Ironclad Strength Build (S-tier)
• Ironclad Whirlwind Energy Build (S-tier)