Name: Ocotlantli (or just Ocotl for short)
Age: 356 (since capture)
Personality:
Largely neutral towards humans, but even though he was captured he is able to recognize that only some dislike him and will treat them kindly. Ocotl speaks slowly and carefully, if he speaks at all, which is rarely. However, he moves quickly and sharply, often being impulsive in movement only, despite his normally meditative nature. He attempts to avoid conflict whenever possible, but his cold personality can sometimes rub people the wrong way, and he ends up having to fight. Surprisingly, he has a rather dark sense of humor, even though he has almost never made a joke. He enjoys the company of other creatures, and doesn't mind being the center of attention. He'll make silent suggestions about where to go, but prefers to stay out of human affairs. Ocotl is helpful to a fault, often never hesitating to assist any sort of creature without questioning it, sometimes landing him into trouble or danger. He values kindness in a companion, and if you can convince him of it, he will be loyal to you for a long time.
Looks:
He can take almost any tree-like humanoid form he wishes, different colored leaves, different types of leaves, patterned bark, hanging fruits (sometimes edible), as well as height to a certain degree.
However, he cannot discard or change his form at will once it has been made, unless it is destroyed or burned, at which point his spirit can inhabit a tree and create a new form using its energy, but destroying the tree in the process. The older or larger the tree, the more powerful he is in physical strength. The form does not naturally decompose, as it is technically alive. If he does not regain a form quickly after having his previous one destroyed, his spirit will be easy to capture, or it will eventually dissipate and he will die.
Background
Ocotlantli was created by an eccentric but very skilled Great-Grandfather Dragon many years ago with incredible power over nature in order to serve as a bodyguard and protector for him. Existing as a spirit of nature, and freely able to change forms within nature at will. Eventually, he was captured and forced into a tree, the dragon bending and shaping the tree to look like a human. He was very violent at first, the Dragon often having to restrain him using his magic. The Dragon treated him with the utmost kindness, and in time Ocotl calmed down, growing kind and loyal like his master. Over several years, the Dragon created two more creatures like Ocotl, named Ocotlihuian, and Ocotlipaquil.
One day, the Dragon was set upon by a massive group of hunters, having been tipped off by a local village. They managed to surprise the Dragon, but the three warriors rushed to his aid. The battle lasted for several hours, and Ocotlihuian and Ocotlipaquil were overwhelmed by the hunters sheer force, their forms burnt to ash. Ocotlantli managed to stay strong for longer, but he too was burned up, and his master killed after the long battle, his power depleted from the long battle. Unable to stay as a spirit, he consumed a tree and created a new form for himself using it. With Ocotlihuian's and Ocotlipaquil's whereabouts unknown, and the Dragon defeated, he wandered forests and landscapes, exploring human society. However, he quickly learned that his presence was feared, and often had to take new forms, as he did not understand that humans did not like him, and got burned up.
While on the outskirts of a small town one day, a young woman found him, and fearful, went to go tell the town's marshal. Just as she was about to run away, she stopped, and went back to him, becoming friends with him. After spending several weeks being friends with the woman, spending afternoons talking with her and learning about the human world, she introduced him to the townspeople. They were scared and angry at first at his strange appearance, but after some convincing by the girl, they accepted him and even started being kind to him, like the Dragon did so many years ago, realizing that humans aren't so bad after all. Some villagers taught him basic combat, and he became skilled with the sword and quarterstaff very quickly, but he ultimately disliked using them. He left the village many years ago, but still visits sometimes, preferring to wander the forests, hills, and mountains instead and discover as many new things about the human and dragon world as possible.
He had recently been captured by the Hunter's Guild, his personality being ideal for a servant or laborer, about four months prior to now.