Water Shield

Using your control over water, you create a barrier between yourself and the attack. When cast, you gain +5 AC until the start of your next turn. If the attack would deal fire or radiant damage, the barrier dissipates and you lose the +5 AC bonus. If the attack would deal cold damage, the spell is absorbed into the barrier, completely negating the spell. If the cold spell affects an area, then any creature within a 5 foot radius centering on you automatically passes a saving roll and takes half damage