Persuasion/Purple Girl
Pheromone Mind Manipulation: Purple Girl can control a person through the use of pheromones, resulting them in a near-mindless state. A state that allows the person to become extremely receptive to suggestion and will follow Kilgrave's every verbal command. Once Purple Girl controls a person the person turns purple as a side effect of the pheromones. Upon recovery from Kara's power her victims usually have a splitting headache. If Kara told a person "I order you to drop dead" they would immediately collapse and go uncouncious and the reason for this is Purple Girl's powers apparently cannot affect the body's involuntary systems. Possibly in the future with her powers growing she maybe able to kill them. Even when she first was learning her powers she had a run in with Mesmero and even turned his pawns into hers and used them against him. As Mesmero states after she performs this feat, "No! You can't overide my power! It's never been done. No one has such power". Which Kara replies, "I do. Lucky me! If I practice real, real hard maybe I'll be even better at muck'in with people's minds than you!" To cut off her control, the person can put Kara in a plastic bag that would collect Kara's pheromones, get out of Kara's manipulation range or the user completly doses themselves in water. However, the moment the person gets out of the water or isn't continually dosed Kara can instantly take over again.
Near the end of Alpha Flight vol.1 her powers began to grow even commanding people to do her bidding without even saying a word. She also extended her range of control for miles, but her limit was never stated. She could even take control over a person much more easily, or even take control over a group of people and she started to enjoy doing it. While in her control the people under her control will tell her whatever she wants. She became worried that she was getting the same feeling her father would get controlling people and she became worried she would turn to crime and follow in his footsteps. She is very powerful and even at one point controlled all of Alpha Flight, and showed she has power to take over magical Asgardian trolls. Kara in the past has shown that she can create a mindlink with Goblyn making their minds one. However, this was never fully explained, but was stated she could merge her mind with whoever she wanted to control. She even merged her mind with a living planet, but it was to much for her and couldn't keep the connection for long.