The vast majority of the 'hero'-types in the Wizard War were, in fact, wizards. Magic existed beforehand; wizards were some of the few people actually in a position to combat Shokat Anoushak immediately after all the weirdness happened because they already knew what they were doing. This is why the casualty rate for wizards was so high, and why they now hold so many positions of power around the world: they did most of the heavy lifting.
Those like Grace typically did NOT have time to create suits, train themselves, etc. and the survivors only really started to come into their own after the Wizard War was over. They were involved, don't get me wrong, but didn't play a primary role. Those that did were mostly recruited as ill-trained shock troops under the command of various wizard's cabals or other organizations. It should be noted that not all results of the Shift are like Grace (who had to learn/train how to use their powers); some appeared from other places/times already knowing their capabilities, like Lord Kasimir and his forces, and thus were more useful in the fighting once they got over the shock of suddenly being somewhere else.
Either way, most of the main movers and shakers of the Wizard War were... well, wizards. That's why it's called that.
Grace's profile is a bit misleading and does not actually depict what she would have used during the Wizard War. She wasn't nearly so well equipped, back in the day... which is why she died, right? Right.
Have you ever read the Temeraire series by Naomi Novik? It's basically the Napoleonic wars... with dragons. Like, huge, intelligent ones that carry full crews and haul cannons and stuff like an airborne navy.
If I recall correctly, this guy does appear in the series somewhere (though I can't remember if he wins or loses, it being an alternate history and all).