Tree Spirit

Tree Spirit, Swamp Watcher
The body he currently uses is 4 meters tall humanoid amalgamation of wood and moss. This is his most commonly used body, although he can use other forms, including bodies of animals that live on swamps, but he cannot control 2 bodies at once. His other abilities include "creating life" in many forms. He can heal wounds, re-grow plants and even "revive" dead organisms. It works with plants perfectly, however reviving sapient creatures doesn't bring back their soul, leaving body as empty husk that relies only on basic instincts and aggression, similar to undead.

Tree Spirit never left Ooran Swamps (but he knows that other places exists, he has basic knowledge about history too) and protects his home from anyone he considers dangerous. Most of people from Ooran hate him, because he doesn't allow them hunt on swamps, however there are people who revere him. Just like on Earth, there are groups dedicated to protecting nature on Greavesoyl too, and these people worship Tree Spirit and consider him a symbol of their idea.

Tree Spirit is a god and biologically has no gender. He uses male pronouns. As a god he feeds on positive emotions, preferring respect.

Story
Eternal Ones known as gods who have to feed on respect and love of mortal races rarely decides to live far from human settlements. Despite being one of the most intelligent races on Greavesoyl humans are ridiculously easy to please making them perfect food source. This cooperation first occurred in prehistoric times when gods protected humans from dragons, and recently had to be resumed in order to save humanity from Curse of Undying.

But there is also god who hates humans. Instead going for easy adoration like others he decided to live on desolate and deadly Swamps of Ooran and protect all species living there from being hunted by dwellers of Ooran Village. Those few who survived encounter with this mossy defender claims he posses incredible healing powers... and can also obliterate anyone who dares to trespass on his land.

In-game
Big tree who can protect his team like no one else. Tree Spirit can disengage from fights by knocking enemies away and heal allies with his Green Wind, while being incredibly hard to kill due to his passive. Bark of Ages only activates after he takes damage, so simple hit and run tactic can greatly reduce the amount of time required to take this wooden ambulance down.

Trivia

 * "Tree Spirit" is a nickname given to the god by people from Ooran Village. His true name is unknown.