Oh yes, there’s another fact to consider – in Heroes 5, they made something I really don’t like – a small map with very high movement speeds for many units. Therefore, either the map will be enlarged, or the speeds will be reduced, and in that case, no one will reach the opponent on the first turn (unless you have a speed tactic and aura, then a dragon or phoenix might make it), which means you need to consider that you won’t be able to eliminate them immediately (this was mentioned above).
And by the way, the energy rune needs to be reduced for the gnome – question: will I have to edit the exe file for this, or are there ways to bypass it?