You are wrong:)
There's Wingael – he's considered a cheater, just like Deleb:)
It's just that when he levels up, for example, to level 15, his opponent has serious problems with their army, which melts away before it even gets a turn. His ability gives a bonus to initiative (or rather, not exactly initiative, but it will be easier for you to understand:)) at the beginning of the battle for 1 turn (they returned 2% per level). For example, at level 19, the starting initiative of Hunters and Druids (standard = 10) will be equal to the initiative of Furies (standard = 16). Think for yourself about the starting initiative of Dryads, Dancers, Unique units, and Emeralds:). Hit and Run is a pure pleasure for him – he puts Hunters and Druids in 7 stacks, and that's it. In general, it's banned on the Ubisoft platform.
Now about the heroes you can play with:
1) Ossir – a fast start (ten archers – that's something) and a starting luck skill. His Hunters are beasts.
2) Anwen – if she levels up well and everything is fine with her enchanted items, she will be no worse than Ossir (maybe even better).
3) Ilfina – a unique unit, a tent, and Light magic. Her horses know what they're doing:)
4) Gilraen – a bunch of Dancers at the start won't hurt, and if you accumulate them by the endgame and upgrade them... they can hit the opponent very hard.
5) Talannar – why not a second hero?) He has a Ballista, Leadership with troop gathering – he has it:). He can take an ability for 250 gold per day at level 3:)
We have good heroes – there's no need for that:smile42:

But you don't have anyone to start with except Deleb – she has the fastest and easiest start in the game; with the other heroes, you lose to neutrals in the early game... so... In general, the Infernal faction also has good heroes. :)