not really thay can just recopy the stat and equipment of charater and job class , plus thay ahve made mercinary scroll thay can attck and summon when fighting ,plus humonculus thay can recopy it data and modify it to like the pet will be agressive,passive ,or supportive something like that on the pet arena thay can just recopy an area and make it look nice and there will be sits so people can watch the pet battle and soo on and thay can pet duel in outside the areana for training purpose you cant control your pet its how you raise them will see how it turn out on a battle