You can be former president martin van buren, who became a time traveling mafia pimp because his father molested him with an interdimensional tentacle dildo? Eh, been done too many times already.
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The avatar used the first portion of its power to pull Mars from its orbit. It then set about hollowing and enlarging the sphere until it had crated a worldship double the size in volume of Earth. The avatar transformed the excess matter into vegetation and oceans, both interior and exterior. The avatar named his creation, The Worldship of Synnibarr, after the color of Mars, the planet from which she was made out and after the color of her first sunset.
To defend the adventurers, it created a well-protected city for them to live in and enclosed the Worldship in a Werestorm to protect it during its initial takeoff and while in flight.
As Synnibar crawled through space, she was bombarded with various types of radiation...This caused the creation of the first drake-type creature, the paradrake. This creature was discovered by an Alchemist whose name is known only to his greatest creations, Lord Midnight and the 72-headed chameleon hydra....they stole his book of knowledge, and using it the dominating hydras, known as the midnight sunstone hydras, granted the other hydras the gift of intelligence and established a social order that lasted 26,000 years before the Great Rebellion of the Drakes, which came after The Purging, and after which the forces of Terra attempted to annihilate the creatures but the conflict still rages 24,000 years later. Dear god, there's more? Dark lords, alien races, evil mages, alchemists of the forbidden city, blah blah blah, genetic plague, blah blah blah orbiting the Planet of Peace, blah blah blah oh goody the Dwarves saved their archives! Fucking Synnibarr.