Every 10s, the equipping character cycles through the Harmonic Movement buff in order: ATK +22.5%, then Elemental Mastery +150, then Stellar Glimmer reaction DMG +35%, each lasting 10s; triggers even when not on the field. Triggering a Stellar Glimmer reaction grants an additional 12s of Harmonic Movement: Contrapuntal matching whichever buff is currently active, stacking with it; can trigger once every 12s.