Overview
Diona's hold skill creates a shield that scales with HP% and applies Cryo. Her burst creates a healing field that also deals Cryo damage. Shield strength and healing both scale with max HP, build HP% sands and substats. Noblesse adds party ATK buff on burst.
How to Play
Use hold skill for a stronger shield (5 claws) or tap for faster Cryo application (2 claws). Cast burst for healing and additional Cryo. Diona works best in Freeze teams where her Cryo aura contributes to perma-freeze.
Optimal Rotation
Diona Hold Skill, Mona Skill/Burst, Venti Burst, Ayaka Sprint/Skill/Burst. Refresh Diona shield before it expires. In Morgana, Diona opens with shield then swaps off-field, minimal field time needed.
F2P Options
Recurve Bow R5 is a free HP% option. Sacrificial Bow works if you have it. Diona is a 4★ from banners, C0 is enough for Morgana and shield support. Noblesse domain is farmable.
Common Mistakes
Using tap skill when you need the full shield, hold for 5 claws. Building ATK% over HP% weakens shield and healing. Running Diona without Cryo DPS teammates wastes her Cryo application. Forgetting burst healing field only heals characters inside it.