Fungus

Fungus, Enoki, Reishi (has a handful of names, typically goes by fungus) 

he/they

chaotic shapeshifter. Can transform into any animal, creature, or plant. They keep their same colors and characteristics in every form. Blood and saliva are the same color as their hooves. Number of mushrooms growing on their body varies, so does placement. Sometimes the mushrooms can be seen growing from their eyes, nose, mouth, hands, etc. If a mushroom is cut it bleeds like any other part of their body.  

Bought for $25 in an auction