I would remove the Gremlins. They are only useful for one turn. The enemy usually eliminates them first. 200 Gremlins can only destroy 2 Demonesses out of 75. They are the weakest unit.
200 Gremlins can deal approximately 1200 damage to Golems, which is already quite significant... So, you need to know how to use everything effectively, and not compare it to a unit that is four levels higher...
