The collection of slimy enemies are all fun, reasonably unique, and all bring something interesting to any dungeon they dwell in. The class is also a blast with some fun mechanics to work around!

My largest criticism is simply the formatting. Not every MÖRK BORG supplement needs to have the same art direction and aesthetic, but the black splashes pasted onto pages can obscure the black text, and the optional class' abilities in particular are compacted into one giant paragraph that's difficult to parse.