Ancient Xi
He was already on par with a sorcerer ancestor before having a chaos qualification, now he can rob others of then and give to their pets, the moment when the heavenly dao loses 1 more qualification the war is over and Su Ping will be massively overpower and only the system will be able to tame him, on the other side since everything can be tamed then the system itself can be tamed and they might change position till the novel ends