My first custom reality's Cosmos. Was once an ordinary transformer who trained to be a Shaman found that he had way more potential then one might think. Cosmos is a Channeler of Cosmic Energy. Some can use cosmic energy, but Cosmos is linked to it like a Shaman to it's spirit partner(s). In fact the Cosmic Energy is Spirit partner. He has several new forms to represent his awesome new power. Solar Form Lunar form/ Void Form, Meteor Form, and Comet form his hidden forms are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Oh, and he got Cosmic Cannon form too.
The planet/planetoid forms are Diety given. His mass never changes so he still kind of small and all of his forms are exhausting to switch too and use except his regular one.
Megatron had weapon form known as the MEga Cannon, but eventually learned of the Art of Runeology and the Omega Rune Showed up on his body as he was slowly Transformed into one of the user of the Omega Rune, Omegatron. Along with Omegastorm and Omega. Omega cannon is an alt form for him. Omega Storm is a Omega Rune user who mixes Storm themed magic. http://transformers.wikia.com/wiki/Megastorm
Omega is the Avatar of Omega and wielder of the Omega Curse. Which Corrupts beings with the Omega Rune's power.http://transformers.wikia.com/wiki/Mega
Finally Prowl(animated) and Jazz(Animated) some how winded up in this reality temporarily and gained Shadow Magic.
I sound nuts right?