Playing on L-shaped maps.

I believe that playing on L-sized maps greatly balances the game, especially because: On XL maps, Necromancers have clear advantages, such as large groups of skeletons and all the consequences that come with it. Tower also performs well on XL maps, so well that it can provide strong competition even to Necropolis, let alone all the other factions. Excluding Conflux, which crushes everyone in any situation. Therefore, I would like to know the tactics for playing specifically on L-sized maps, especially for Necropolis, as well as Tower and Dungeon (resource-intensive cities) against human players on a 200% difficulty level without using diplomacy. Assuming moderate luck for all players. Thank you in advance.