Heroes 5.5 WarGame Edition - Tactical Edition.

so it doesn't turn out like with Hafiz? I gathered 100 gremlins on the first day and set off.

More for gameplay reasons than balance.
Gathering a super-stack is profitable, but playing with it is less interesting than combining different units.

Regarding Hafiz, there isn't such a huge advantage here, which specialists get at level 1 in the form of a huge starting army in the original game. Hafiz is much more modest here; his army is no more powerful than that of other heroes.