So, I want to construct a setting where gryphons are the primary mounts. I just like the idea of people riding gryphons. However, it seems quite impractical, as gryphons are carnivorous, and gryphons are used in wars and battles in this setting. It's much easier to feed a horse than a gryphon, as meat spoils. I think to get around this, I might my gryphons omnivores so that they can survive off of plants, but generally prefer meat. As for battle tactics with gryphons, I imagine them being used primarily for reconnaissance. The opposing side might send out their own gryphons riders to counter the recon scouts, and thus engaging in dog fights. Some might also function as "bombers," dropping things like rocks, grenades, Greek fire, etc onto armies below. The rider controls the gryphon in the way a knight controls or directs his horse. The rider is also armed. Now, that brings up why would the rider need sidearms if the gryphon itself is practically a weapon? And what kind of sidearm would make the most sense for a rider to carry? I'm thinking of either a lance or crossbow. Is it possible to make gryphon mounts plausible or practical? If so, how?