Hexxus

Hexxus was the main villain from Winnie the Pooh goes to Ferngully, the Australian god of destruction, and the dark spawn lord of pollution, toxic, and (obviously) destruction. Next to Malefor, Hexxus is one of the most powerful dark spawn lords, and has three forms (images shown of Hexxus's forms).

In the original Pooh adventure film, Hexxus was trapped in a tree for 10,000 years by Magi Lune for trying to destroy Ferngully and the world. Bowser, a friend of Malefor, made it one of his missions to try and free the dark god in his efforts to conquer the worlds. However, the koopa king and slime lord were both defeated by the combined efforts of Pooh bear and a group of fairies.

But, despite his humiliating defeat, Hexxus is very repsected amongst the dark spawn lords, and is Malefor's good friend. He returned in Spongebob's Adventures of the Black Cauldron as one of the dark spawn lords being released by the cauldron, however, due to Gurgi's sacrivive, Hexxus was once again banished.