Increases ATK by 20/25/30/35/40%. When party members obtain Elemental Shards from Crystallize or trigger Lunar-Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 18/22.5/27/31.5/36%. The Seal lasts for 15s, and the equipper may have up to 2 Seals at once. All of the equipper's Seals will disappear 0.2s after their Elemental Skill deals DMG. Up to 1 Seal may be obtained every second through the Lunar-Crystallize reaction.