Heroes 5.5 WarGame Edition - Tactical Edition.

About the mole, just as I said =)

It looks nice. And what's the perk for the manticores? Just an increase in their numbers?

Read about it in the perk description on page 1. Yes, manticores are added to the hero's army once and weekly. The same applies to wolves (but daily).

Regarding speed, what about furies and megaras? They would lose their main purpose, and the same goes for dragons, although you could, on the contrary, add speed to the necromancer dragons, and it would be great.

Beasts play better if they don't run across the entire battlefield. Harpies didn't lose their meaning in Heroes 3, and they didn't fly across the entire battlefield.
Gray dragons have a speed of 8, i.e., they can reach their destination from the first turn. Other dragons are slower, but that's their distinguishing feature.

By the way, in the next version, the speed of beasts/furies/megaras will be increased by 1 - to 5/5/4 (5 here is the top speed for a small, non-flying unit).

Yes, by the way, can you add a new race? I'm a little tired of these, for example, in online Heroes, there is a barbarian race, which is very cool. But this is just a thought.

It's not possible, and there's no desire to replace the existing ones. Our mod has a solid foundation (i.e., to improve what exists as much as possible). Adding new races, heroes, or units doesn't interest me much, because there are already enough of them, and besides, this niche is already occupied by numerous other mods.

Although, on the other hand, in our mod, the existing units/heroes/magic, and even races, change so much that they can already be considered new, except for the visual aspect.