Haven faction discussion.

A motley crew is called an army. The faction's castle is such and such, the army belongs to that castle. Simple and clear. Almost. But not "race tower" or "faction tower."

In the third game, it's just right. But the fourth one, yes, it stands apart. There's only the devil and the dog. I never liked the dog. But the devil fits your description quite well.

Now it's clear, thank you.

Yes, it's obvious.
Yes, in the third game, the graphics are arranged in such a way that all the units seem weak, but in the fourth (imps with pitchforks, I like the dogs in the Disciples series, but in Heroes they are completely useless, then there's some kind of vomit that is boldly called offspring, and disabled devils, the last one looks very good, and he even has teleportation in his pocket, but his stats are weak).
You're welcome.