Refinements:

R1: Offering Unto Wind and Sun

Increases Elemental Mastery by 100. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 28% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.

R2: Offering Unto Wind and Sun

Increases Elemental Mastery by 125. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 35% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.

R3: Offering Unto Wind and Sun

Increases Elemental Mastery by 150. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 42% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.

R4: Offering Unto Wind and Sun

Increases Elemental Mastery by 175. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 49% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.

R5: Offering Unto Wind and Sun

Increases Elemental Mastery by 200. Gain the "Mirror of Night" effect within 15s after the equipping character creates a shield: The current active party member deals 56% increased DMG to nearby opponents. You can gain the "Mirror of Night" effect once every 14s.

Your support is more valuable than a primogem.