Fallout: Equestria Book Project

Which do you prefer?

I prefer "Sonic Radboom" myself, though I do admit to seeing the appeal of "Toxic Rainboom".

Or are you the sort that would prefer to split the difference and call it "Toxic Radboom"? That works for me as well.

Isn't that obvious? Toxic Rainboom, since it contains the word Rain ^^.