Your telling me that she can only make guns with Fire Magic. Zaper, Taban seemed pretty good at making weapons without that.
Lol, no. I'm asking wether she could use that power to her advantage, like how she melted/processed the dreamstone with that power. Or did she? Cuz Robo did it to. Maybe they didn't use it.. meh.
No. She didn't need to fight anymore. No need for magic anymore.
Magic can still be used in other ways, just as elements can be. She could use fire to burn the fireplace wood, or melt metal or other things. Crono on the other hand also has no need for it.
Thats an absurd arguement. I guess Crono must have used his magic in secret at the Battle of Zenan Bridge too. And I guess Magus using Magic in that war was all secret as well. Chronopolis=Belthasar's knowledge of Magic+Future Technology.
I have no idea how is was covered up. But Crono's part may have been just legend, same with Magus. Heck, maybe Crono and co aren't supposed to use magic Oo.
As for Chronopolis, no one even knows that Belthasar used magic, except for himself.
Also, Remember, 600AD is different to Guardia in 1000AD. They've been having peace for 400 years, and probably don't even have a well established military, so Crono wouldn't need to train for anything anyway. He'd just keep up his sword fighting skills, since that is his passion, and not magic.