Mudspawn (5e Creature)

Small elemental, lawful neutral

Armor Class 11 (natural armor)
Hit Points 14 (4d6)
Speed 20 ft. (30 ft. in mud), swim 20 ft.

Proficiency Bonus +2
Damage Resistances bludgeoning
Condition Immunities blinded
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 10
Languages Common, Primordial
Challenge 1/4 (50 XP)

Muddy Nature. The mudspawn ignores any difficult terrain caused by mud. As an action, it can also merge with mud, gaining advantage on any Dexterity (Stealth) check to hide. In addition, the mudspawn can move through a space as narrow as 1 inch wide without squeezing.

All credit goes to the Mudcrawler race, this is meant to be a better alternative to the awakened shrub

Mudcrawlers look like moving piles of mud. They usually have only a mouth to speak with and two arms to manipulate their environments if they want or need to, usually to make members of more humanoid races more comfortable with their presence, but among their own kind, they usually take their natural forms. If they really need to, however, they can take a vaguely humanoid appearance, resembling a hairless human child with no eyes. If a mudcrawler spends enough time in this form around humanoids or feel like they need to, they can learn subtle things, like slightly shifting their bodies to give the illusion of breathing. Their voices usually sound like mud impacting with a stone wall, but, if they try, they can sound more like humans.
Legends are told of the first mudcrawlers, mud mephits that destroyed a temple dedicated to a powerful god. In the god's wrath, all the mephits were transformed into mundane puddles of mud, but one was different. It had swallowed a sacred artefact and its magic coursed through the mud, giving it new life. The creature remembered nothing of its former life, and as it inched towards its former companions, they were also transformed, but they too had no memories. Seeing the ruined building they were in, they worked together to rebuild it, and when it was done, the god, surprised at the actions of those that destroyed the temple, appeared before them and told them that he would make their kind immortal. They did not understand this, so the god imbued them with intelligence, and spread them all across the multiverse, to survive. The mudcrawlers now revere this god, whose name they have long forgotten, as each mudcrawler knows him by a different name, perhaps the god's wish the entire time. However, they believe that each other god is just another form of their god.
Most mudcrawlers form groups numbering into the hundreds, appearing as a moving swarm of mud puddles. When two groups meet, they usually combine and move in the same direction as the largest group. Sometimes, mudcrawlers split into smaller groups in their migrations, though groups of mudcrawlers rarely meet twice.

Elemental Nature. A mudspawn doesn't require air, food, drink, or sleep.