FORMER

An entity disrupting certain Altered Items, including a fridge that kills you if you don't keep looking at it after making eye contact. In the Astral Plane, it takes the form of a gigantic tardigrade-like thing with a huge eye that rotates between two different "modes." According to the Board, it's a former member of... whatever they are... and seems to be making a power play by disrupting Altered Items.

Example of:
Superboss