Ooze by Dungeon Dog

A black pudding resembles a heaving mound of sticky black sludge. It is the most dangerous and deadly out of all the oozes. Within his corrosive form the black pudding devours everything that it touches except for stone itself. – The Black Pudding

“An oblex feeds on memories, but not to achieve a goal on its own. Oblexes are eager for memories from characters, as they cannot create memories of their own. In this way, they serve their creators, the illithids.” -The Oblex -The Oblex

“Stone has been transformed by chaotic forces into gray sludge that is now alive. This liquid monster can corrode your weapons and armor in seconds, which can make the encounter quite expensive!”-Gray Ooze

“The large ooze in front of you resembles a giant, dark yellow amoeba consisting of a thick, porous, golden sludge moving slowly along the dungeon floor and wall.” – Ochre Jelly