I like that idea. Having a central big bad using various disasters to bring about a central goal is a nice theme. I'd be happy to provide a recruit too, either as my preexisting colleague or someone else -- feel free to DM me if additional details are needed or if I can assist at all! :)
Name: Cassiopeia (Mew!)
Age: Unknown, but at least several millennia
Gender: None
Personality/Backstory:
Cassiopeia is the assigned guardian of their own reality, even when not working with others to protect multiverses. An intelligent and ancient Pokemon, essentially a force of nature...