Heroes 5.5 WarGame Edition - Tactical Edition.

Leadership suits humans perfectly; even the racial perk, Prayer, primarily boosts morale. The racial bonus for Demons is actually directly tied to logistics (the method of delivering troops to the battlefield), although not in a gameplay sense. Regarding the numbers 20 and 10%, let me explain. The numbers were chosen so that, firstly, there would be a significant difference between the groups (there is no significant difference between 10 and 12%). And secondly, for ease of calculating the chances of acquiring a new skill. For example, at the start, you have a racial +1 base (20%). This means that the chance of acquiring a primary base is 20/80 (80 = 100-20), and a secondary base is 10/80. If another popular base is acquired, the total will change from 80 to 60 or 70, which is also convenient for calculations (round numbers). If a rare base (2%) is acquired, the number is so small that it can be ignored. That is, the option 20*3 + 10*3 + 2*5 seems to me to be the most convenient, simple, and intuitive. The racial bonus is set to 0%, as it is always present by default from the start.