Don’t know quite how much this would affect the overall team building within the game, but what if changing your players race/home kingdom actually affected the team buffs rather than simply being cosmetic.
IE, having a wargare player on a team with 3 other wargare troop would give you the wargare general buff rather than the previous level, or having your home kingdom be Maugrim Woods along with 3 other Maugrim Woods troops would give you the king of wolves buff instead of the previous level, etc etc
Don’t know exactly just how OP the actual player as a troop gets near the end game even without those buffs, so just throwing the idea out there