maybe you could summone to help you hual your coal to the bank and have summon as a whole new skill so u have to train it. give a list of new monsters and dont use dragons. maybe have monsters help you teleport or teleport your enemy and maybe have so summons can only fight other summons and if the opponets summon is killed u take a hp loss or something like that. who knows im sure they could work something if it is to be in the game but i dont think it will be what some people want.