From Dragalia Lost Wiki
Steel-Forged Body is a special effect that reduces adventurers' dragon gauges when they are hit by the enemy. It is currently only used by Tartarus.
- If an adventurer is in shapeshift, Dragondrive, Persona, or a Hybrid Transformation, then their transformation will be undone.
- This will still occur even if the adventurer is in the invincibility frames of a skill when they are hit.
- This effect can be cancelled by defeating the fourth portal's shadow in Expert and Legend, or the third portal's shadow in Master difficulty. It does not exist in Standard.