Podlings - grown from a "mother" plant that comes into contact with the flesh of humanoids; whereupon a sprout forms and grows into fully fledged plant-based creature that looks identical to the humanoid whose flesh spawned it. When fully developed, they feel an intense drive to kill and replace their humanoid parent. Podlings possess a cold, logical sentience. Though they feel an inherent and unwavering loyalty to the mother plant, podlings are independent creatures with their own inscrutable goals. Underneath their skin, Podlings possess dense wooden stalks instead of bones, and masses of hairy, vine-like tendril instead of muscles.
Emotionless: Immune to charm and fear effects, as well as any other effect (beneficial or deleterious) that relies upon emotions. Including Bardic Inspiration, Divine Favor, Bless, Heroism, the Battlemaster(fighter)'s rally ability, etc.
Shriek: Capable of emitting a high-pitched shriek that can be heard from long distances. 1/day can focus this into an effect that mimics the spell Thunderwave with a DC equal to 8 + the Podling's proficiency bonus + the Podling's constitution modifier. At 3rd level, a podling can also focus this into an effect that replicates the Shatter spell 1/day, again using Constitution as a casting stat.
Rootlets: When barefoot on nutrient rich soil, podlings can extend rootlets into the ground, drawing sustenance as if they had eaten a full day's meal and had consumed a full day's worth of water (if water is also present in the ground). This ability also requires a process much like photosynthesis and only functions if the Podling has been exposed for at least 1 hour that day to either sunlight or faerzress.