Hexxus

Hexxus (voiced by Tim Curry) is the spirit of destruction and all that is toxic to nature. He is the main villain in 20th Century Fox's animated film "FernGully: The Last Rainforest". Hexxus was defeated by Magi Lune and imprisoned inside a tree. The movie FernGully's main male protagonist Zak's superiors cut down an enchanted baobab tree that Zak had painted an X mark on marking it to be cut down. Unfortunately, this turns out to be the tree Hexxus is trapped in, and the cutting down and processing of the tree by the lumbermill-like leveller machine releases him. Determined to get revenge upon the fairies of Fern Gully (specifically Magi Lune) for imprisoning him, Hexxus gains power from pollution, specifically the energy and smoke produced by the Leveler, as he can be seen "drinking" from it like a liquid. He manipulates the lumberjacks and their tree leveler into tearing down the rainforest in the direction of the fairies by the next morning, thereby destroying the very fabric of their world. He does this under the vocal guise of their boss. It is up to Crysta and the other fairies to defeat Hexxus. Zak turns off the leveler, causing Hexxus to lose the energy he was gaining from it and disappear, but he soon rips out of the machine as a giant demonic skeleton creature made of that breathes fire. Crysta seemingly sacrifices herself like Magi did by allowing Hexxus to devour her in one bite, and uses her powers from inside him to grow a seed she had with her to again imprison Hexxus (together with the leveler) inside a new tree with help from the fairies led by Pips, thereby imprisoning him again.

In Ultima, Hexxus was freed once more from the second tree prison by Padro Lodo, who recruited him to the Organization as a Demon Lord and world destroyer due to his higly toxic powers and demonic background. Hexxus is cruel and sardonic, annoying other Org members with his toxic pranks just for the fun of it. But he's not to be underestimated at all times, because he can transform himself into his fiery skeletal form, which has the rough equivalent strength level of Deathwing!