A new race – the Order of Knights of Elrath.

In principle, the race is well-designed. I think there should be absolutely no tamed creatures. Let the race consist purely of humans. But I think something should be criticized. Namely, I didn't see a single flying creature; how will such an army besiege a city! They can simply be shot down under the walls! Personally, I suggest adding an ability (for example, to the Sword Brothers and their upgrades) that allows a stack of warriors to approach the city walls and, by activating the ability, climb over the wall. I would call it "rope and hook" or something similar. In general, I've given you something to think about, and you can decide whether to change something or leave it as it is.