How to use this tool
- Choose an attacker and defender from sample builds or your saved spirit configurations.
- Set current HP, Energy and which side moves first, then calculate the available skill damage.
- Select a skill result to inspect its damage and breakdown. Use battle training to explore effects across multiple turns.
What this tool does
This Roco Kingdom damage calculator previews a single direct attack from a fresh battle state under the supported legacy S3 rules. It shows the attack and defense channel, effective power, same-type and type multipliers, and resulting HP. It does not include later damage, chained effects or the opponent’s action in that turn.
Common questions
Why does a support skill have no damage result?
Some skills do not deal direct damage, while others need complex state that a single-attack preview does not model. Test those effects in battle training.
Why can results differ from the site skill catalog?
The public catalog and recovered legacy engine represent different rule snapshots. When values differ, this calculation uses the legacy engine and displays a warning.
Does the selected level change the result?
The recovered engine uses normalized stats. Build level does not scale those stats, and training marks are adapted to the legacy model described in the rules notice.