Refinements:

R1: Many Oaths of Dawn and Dusk

Increases ATK by 20%. When party members obtain Elemental Shards from Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 18%. 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.

R2: Many Oaths of Dawn and Dusk

Increases ATK by 25%. When party members obtain Elemental Shards from Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 22.5%. 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.

R3: Many Oaths of Dawn and Dusk

Increases ATK by 30%. When party members obtain Elemental Shards from Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 27%. 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.

R4: Many Oaths of Dawn and Dusk

Increases ATK by 35%. When party members obtain Elemental Shards from Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 31.5%. 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.

R5: Many Oaths of Dawn and Dusk

Increases ATK by 40%. When party members obtain Elemental Shards from Crystallize reactions, the equipping character will gain 1 Seal, increasing Elemental Skill DMG by 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.

Your support is more valuable than a primogem.