I’m not exactly sure, but i remember when the ice-themed dungeon was mentioned, Ymir the Frost Giant popped around as the supposed boss to the dungeon, also it appeared in both Pixel Editors (normal and testing), of course, this was scrapped on the Kabam version of the Ice Cave.
Through the problem is that i don’t remember if it was official (highly likely) or some community member decided to make the sprite, probably the same issue applies to the corrupted/creepy version of the Gods for the scrapped Dreamscape Labyrinth.