Bakugan are creatures from the show of the same name aka "Bakugan" and from the world of Vestroia the Homeworld of the bakugan.

There's no such thing as a "typical bakugan" they are split into (from the main series anyway) six main elements known as attributes 
They are
Pyrus-fire
Aquos-water
Haos-light
Subterra-earth
Ventus-air/wind
Darkus-Darkness/shadow

I'm gonna be making four bakugan OCs for each element

If you see a "B-power" as I'm using the "rebooted" version of the series lol

Anyway I'll put one for each chapter

Enjoy.