Collector of Villains from All over the World

During a trip to Huashan, I unexpectedly traveled through the novel "Swordsman" and obtained the villain collection system! Get rewards for every villain you collect! Then—— Can the villain be used by himself? Then if you collect strong enough villains, wouldn't you be able to do whatever you want? Haha, how can one world of Swordsman be enough? Yitian, The Deer and the Cauldron, Zhetian, Doupo, Douluo, how can I go through all the worlds? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.