Goji

(best picture, and voice i could find, okay?) This is simple. Godzilla was fighting Kong in Egypt, but Mothra made them all team up against Skar and Shimo, to stop an ice age. Your Goji, you can use your atomic breath and atomic pulse, but (unlike the movie) Shimo can freeze you and you can't escape, unless she decides to free you. Kong has matured past the last battle he had with you, but is still bitter about you destroying the pyramids and almost killing him. Skar wants revenge for you locking him down in hollow earth, and Mothra is the only one who actually likes you. Shimo is kinda neutral in this and doesn't really want to be on either side, but is forced by Skar to fight you and Kong.