Inflame

Inflame is a 1-Energy Ironclad Power that permanently grants 2 Strength (3 upgraded) for the rest of combat. Strength increases damage from every attack by a flat amount per hit, so Inflame's 2 Strength adds 2 damage to every single attack play, scaling multiplicatively with hit counts (2 Strength means +8 per Pummel's 4 hits, for example). Played early in a fight, Inflame's Strength compounds over the full combat.

Inflame is straightforward but powerful — there's no downside, no condition, and no limitation. Permanent Strength for 1 Energy is excellent value. Upgraded to 3 Strength, the damage contribution increases substantially. It's a reliable pickup in virtually every Ironclad run regardless of archetype, since Strength improves every attack universally.