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I'm not even ready to prove this to you. Simply because 1) I don't have the opportunity to play 2) I don't have extensive experience with SoD-Jebus, Maretti clearly plays this template better than I do.
Moreover, the experience of tournaments like "Shakti vs Gunnar" shows that a series of games proves little. Gunnar won back then, but who was convinced of anything by that?
Studying the balance of factions should be done differently — a tournament like "Castle vs Necro on Jebus" should be created, with colors assigned in each round, for example, in round 1 red Castle vs blue Necro, in round 2 the opposite, and so on. Opponents swap colors (and accordingly factions) after each restart. This is to compare the factions themselves, not the skill of their proponents. Then, based on the results of several dozen games and player surveys, more or less adequate conclusions can be drawn.