Flame Infusion

You surround a willing target in searing flames, changing their typing to Fire II. As a Fire II type, they take half damage from Fire and Frost Damage or attacks with the Fire or Frost keywords unless that attack deals true damage. They take 50% more damage from Water Damage or attacks with the Water keyword. While the ward lasts, they also gain immunity to Burning. The ward lasts until the end of the encounter or until their type is overwritten by a more powerful type.