Off on a a distant planet that was also some time ago lived a diabolical powerful sorcerer which ruled the kingdoms with an iron fist which caused turmoil and debauchery for all the lands. He lived in a remote palace on top of a hill the palace was maintained by a legion of various golems all overseen by the Ultra-destructo-uber-golem. Inside this palace there was all sorts of things going on which remained a mystery to all outsiders. Experiments in alchemy and magic were rumored by the wisest of sages. Eventually everyone in the kingdoms of the land became fed up with the Moonwarlock's injustices, tyranny and havoc that he was causeing throughout the whole world. So all of the kingdoms set aside all of there differences formed a united secret alliance against The Moonwarlock. Soon afterwards all of the most powerful armies, wizards, priests, and psionicists even were able to get a few dragons and other powerful monsters of the world just came down of the Moonwarlock's ass. Eventually the Moonwarlock was running out of spellpower. Managed to take down a few powerful foes but eventually he had no other choice but to give-in. However the Moonwarlock had a contingency plan which consisted of a very powerful spell which transported him, his palace, some ground below the palace, and his golem servants to another plane of existance. Being as evil as he was the spell opted to transport him and his palace to one of the 666 planes of the abyss. Back at the old world on the Prime Material plane it took all the most powerful wizard 6 months to figure out where he went to.
After finding out he had gone to the abyss they figured out that only an elite few consisting of powerful mages would really be able to go after him in the abyss. If those mages were ultimately defeated there would be even more casualties in the hiearchy of there world. So instead they got together and developed a powerful spell that formed a permanant ward from the Moonwarlock from entering back into their planet. They were able to do so THEN because it needed to be done without distractions.
Meanwhile back at the Abyss The Moonwarlock had a constant struggle with abyssal demons wanting to harass him. Soon he was confronted by the Demon Lord of that Plane. That demonlord's name was Ramses of the Forked Horn. After much struggle and debate the Moonwarlock and all of his power managed to destroy Ramses and therefore envelopeing the power of the demonlord into himself. His teeth became carnivorous, his eyes that of the serpent, and the horns of the ram grew from his forehead. The Moonwarlock said "I shall go back upon the old world! even more powerful than I already was! and seek my vengeance!" besides the Moonwarlock thot "The abyss isn't exactly a very pleasant place to live." As he prepared a spell to bring him and his palace back to the prime material plane. The ultra-destructo-uber-golem was gazing upon the crystal mirror of divination and informed him that the old world had casted a powerful ward spell against him from entering the world. The moonwarlock had a giant super spell underway so there was really no turning back from casting it so they found somewhere else in the prime material plane to transport to. That place was a remote planet off in the far reaches of outer space. This planet was a large moon that was orbiting a giant planet with rings like saturn and a surface similar to Jupiter with all kinds of swirling vibrant almost hypnotic colors and these occasional tremendous electrical storms. The cold and lifeless moon was too cold to bear life unto it unless there was someway to warm the planet up.
So the Moonwarlock landed his palace on a hilltop at the small moonplanet he named the planet Ayam. Now that he was immortal from being part demon he never aged psysically anymore and so he decided to warm the small planet up and had his golem servants work out the details and form flora and fauna throughout Ayam. He decided that Mammals and Reptiles were too dominant of species soo he only harvested small birds, giant amphibians, giant insects, fish, and intelligent fungus people. Most of the planet was a lush swampland with one large arid area; and one minor arctic pole on the north end. All of these hybrids and species were developed in his palace while he was in the old world. Hence he created his own small world with a different set of species to dominate the place. He decided that he would be the neutral overseer of this place and act as their god. And then became THE LAND OF THE MOONWARLOCK.