Odette's Elemental Skill and Burst deal off-field Cryo damage that counts as Stellar-Conduct or Stellar Swirl reaction damage, and her presence is one of the few things that unlocks those reactions for the whole team. Pair her with an Electro carry for Stellar-Conduct or an Anemo carry for Stellar Swirl, plus her signature sword Whitelake Frostfeather if available. Prioritize Crit Rate/DMG and Cryo DMG Bonus, using artifact sets like Heart of the Furnace or Scarlet Proof built around Stellar Glimmer reactions.