Grand-Godzilla

I had this idea about a Godzilla that was created due to the collision of the asteroid that killed the dinosaurs. What if it carried nuclear elements so pure and concentrated that it mutated the Gozillasaurs and created a Godzilla back then, and as it continued to live and get older it grew more powerful. It could create a radioactive energy barrier around its body, put nuclear energy into it's physical attacks, project an emp from its spines, and his atomic breath would be an iontomic breath (white & neon blue in color) with greater range and power. Toho could make a movie about how it has awakened after millions of year of slumber and how it is duking it out with a new monster from its past. The story could even retell the origins of the first Godzilla and history of monster like King Ghidorah and Destroyah( Them both potentially being the monster from Grand-Godzilla's past in some way) Sounds awsome?!!?