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How evolution works: eligible units use materials from Story stages, Raids, and missions to unlock stronger forms and abilities. Documented evolutions include Madaro, Valcrad, and Cursed Lover; per-unit material quantities are not fully published, so the live panel is the honesty check. Evolution strengthens eligible units and can add active or passive abilities. Collect the material shown by the unit's in-game evolution panel through Story stages, Raids, and missions, keep the base unit in your roster, and confirm only when the panel shows every requirement met. Public per-unit cost and drop-rate tables are not complete, so the live panel is the final authority for quantities.