MMH5.5 - Heroes of Might and Magic 5.5

I understand, so it's not a desired, but a necessary measure to balance powerful skills. An alternative could be to strengthen weak skills, although this is not possible for all skills.
For example, in my mod, the skill "reduce magic damage by 15%" is considered a weak skill and cannot be naturally strengthened, but the next skill in the same branch is "+15% to health," which is very strong and allows this branch to compete with both Vitality + Power of Stone and 30% Evasion + Stand Your Ground.
Although from the point of view of reducing variability, it still involves a sacrifice, but in this implementation, at least there is no concept of a "mandatory skill."