The Rainbow is a feature that allows users to send copper aethers through it. Aethers may bring back trinkets, light bottles and equippables, but also change in various ways. A Rainbow Sprite is required to access the Rainbow.
Items from the Rainbow[]
Light Bottles are used in the Nursery to create aethers.
Equippables from the Rainbow[]
Aether Changes[]
Aethers that are sent through the Rainbow may change gender, pose (?), turn into a mercury colour or very rarely become a CS breed (?).