Visage of the Fathomless

You distort and warp a targets mind with the chill, and the frightening power of the abyss and all of its creatures. A target must make a Wisdom saving throw. On a failed save the target believes their Allies(if any) are harmful sea creatures of the Fathomless Depths of the sea and are in the chilly depths of the sea. At the beginning of each of their turns they take 6d8 psychic, and 3d8 cold damage, and must attack a Sea Creature (if present). If no sea creatures are present, it instead takes no actions other then movement as its dazzled by its surroundings. This happens as long as concentration persists

If it succeeds it instead takes 3d8 cold, and nothing else happens. 

For each Spell Slot cast higher then 5th level, target another creature within 30ft of the primary. Concentration is not broken when casting a spell in this way. In addition, for every 2 spells casted higher then 5th, increase the damage by 1d8 psychic and 1d8 cold damage.

Each time this spell is cast, there is a 15% chance the Shawl disappears from the caster.