Conqueror's Haki allows people to impose their willpower on others, knocking them out in the process. It can also be used to make animals submit to the user and tame others freely, making it quite a dangerous ability. However, the basic usage of this power isn't nearly as special.
when used anyone in a 40ft radius has to make an opposing will save with an dc equal to 10 + the user's wisdom modifier
5th level- control who has to make the save
10th level- + 15ft