The Moon Shell is an equipable crafted accessory item which turns the holder into a Werewolf at night and a Merfolk when entering water. The Merfolk aspect takes priority over the Werewolf aspect - e.g. if the player enters water at night, they will turn into a Merfolk until they exit the water.
Wearing a Fish Bowl will not transform the player into Merfolk.
The transformation overrides armor. However, the armor's own benefits remain.
Using dyes will change the head, body and feet of the Werewolf/Merfolk.
If the player is in either form while using an invisibility potion, they will be totally invisible.
If a player wears this in a cosmetic accessory slot, they will look like a Werewolf all the time except in water, where they look like a Merfolk instead. However, this does not trigger the bonuses, because the game says "No stats will be gained". Also applies to Celestial Shell.
