=Lizard=
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It seems like you need a solution that won't put you in a position where you have to make choices or weigh priorities. With that approach, you could end up with something like "press X to win."
Added 3 minutes later
And how was the issue of Gosh arriving at the tavern resolved in Warlords, if he wasn't chosen as the starting hero in a mirror match? Or were starting options other than Gosh not provided?
There might be some merit to that, it needs to be tested in real-world conditions. If anything, I'm not a hater, but rather a rare high-experienced player who fully supports your and Hota-Kru's work.
p.s. Of course, in Warlords, mirror matches almost always involved the same heroes – the strongest in that faction. Gosh, Broghilda, Valeska, etc.