Firstly, it's not Nagan, it's Dust.
Secondly, neither Nagan nor Neo nor Sag will find a single player among them who can play well on League-specific fixes. So, League will have a 4-0 score against everyone except Bay on their own field, and something like 2-2 (depending on how the match goes) against Bay.
So, the idea with fixes will have to be discarded.
Secondly, I'm sure many Heroes players will be able to play on fixes; I myself have only played against an opponent three times, and I used to be afraid that I would be crushed due to lack of knowledge, but after playing once, it became easier. So, if we register a League team, we can raise a good Heroes player's level in a couple of weeks so that they can put up a fight against the fix players. The main thing is desire!