Ideas and suggestions.

It is obvious to me that in order to create a proper tournament version of Heroes, one must continue working on everything that "sticks out."

1) cut the percentage of imbalanced special abilities that have no equal — offense, armor, log (if in a duel between equals one gets a hero from this set and the other doesn't — most likely гг for the reason "just lucky, Tazar walked into the tavern")
2) move TP/Resurrect (or both) out of the Earth school, DD out of the Air school (one could also think about various absurdities in magic)
3) strengthen useless special abilities (this was done in WT, and it was an improvement to the game).

It is not necessary to make this part of the official HotA "for the plebs." I am talking about something needed as a Tournament Edition option (I really like this term).
Why specifically as an option — for the same reason why not everyone plays HotA. Because it's hard for people to master the changelog. And it is clear that just as CIS Tournaments were once started by the TE community and continued by WT — such events should be played on the most hardcore, highest quality version of the game from a balancing perspective.