What I've noticed is that many of these kits seem to be buffed versions of money walls kits. For instance, the obsidian kit is clearly based off defender in money walls, but that kit is much more balanced due to the fact that the obsidian only comprises 10/13 needed pieces. Warrior is a combination of tank and swordsman, and rusher is just what you could buy with money man. The knockback stick kit is based off Enchanter due to the fact you can pull out knockback. The kits are more balanced in money walls because purchasable items are better than in eggwars. In money walls you also have 10 minutes to gear up so others could easily beat you.