[Tournaments HMM V OFF] "Lord of the Golems"

I'm not sure, is the order in which heroes appear in the tavern random, or is it strictly predetermined at the start of the game? If it's the first case, then it's clear why they are banned. But if it's the second case, then I'm confused. By the way, does it say that they are all Orcs? Did I understand correctly that we will be playing as Orcs without Orcs? Honestly, I don't understand why, for example, Astral Gates are banned. In the previous tournament, it was about experience, or are there the same features in this map?