Ironthunder
The Uncultured One
See, I reckon that at some point (Not next obviously, but at some point), we're going to get Eliwood as a Legendary Fire Hero. Ephraim was made a Fire hero probably entirely due to Siegmund being the 'flame lance', it's entirely plausible we'll eventually get Fire!Eliwood, given he wields, y'know, the Blazing Blade.