Shambling Mounds appear to be heaps of rotting vegetation, but they are actually an intelligent form of carnivorous plant-life with a roughly humanoid shape and a brain-like control center in the "chest". Enrobed in a sticky slime, most physical (and elemental) attacks are only nominally effective against these verdant horrors...
Shambling Mounds are capable of striking with two powerful club-like appendages (2d6). Worse yet is the sticky, toxic slime which coats the Shambler; in fact, the Shambler's favorite tactic is to entangle its prey in the viscous slime, possibly even choking them to death with the noxious stuff. The slime also dampens the force of any physical blows (50% immune to bludgeoning, slashing, and piercing damage) and provides protection against certain elemental magicks (50% immune to cold; 100% immune to fire). As testament to their alien ecology, Shamblers are also immune to electricity; in fact, strong electrical fields will actually accelerate their vegetative repair!
I suppose it is more correct to classify this submission as a mere retexturing of extant Shamblers. However, I always thought the 1st Ed. Shambling Mound was more dangerous than 3rd Ed. version, so I thought I'd submit my rendition of this old favorite, along with several texture options so folks can pick from a smorgasbord of Shamblers. Enjoy!
Thanks (as always) for your generous comments and brilliant suggestions... I'll take a look at some in-game textures and maybe add them to the bevy. _________________________