CJorex, take Head the Aron. It thinks its head is the only good thing about it. As such, it may only use Headbutt, Iron Head, and Head Smash.
If its ability is Rock Head, then he thinks his ability is Heavy Metal. When you defeat Byron, he realizes he can't learn Heavy Slam and gets disappointed. As such, he may not battle until he feels light by using magnet rise. Feeling better now that he can avoid Ground-type moves and not deal with his heavy weight, he decides to solo Candice. Once you reach the Survival Area, though, he gets so upset at not learning Heavy Slam that he must learn Outrage and use it to solo your rival. He then realizes that he has good aspects other than his head, so he must now know Earthquake/Iron Head/Head Smash/Outrage and keep those moves for the rest of the game.
If its ability is Sturdy, then it thinks its ability is Rock Head. As such, he may use recoil moves in addition to the aformented moves. He must learn Take Down ASAP, and then replace it with Double-Edge. He also must solo 2 gym leaders and one E4 using recoil moves at least once per battle. You must then go on to solo Cynthia's Spiritomb with Head Smash. You must then go on to stay in and keep using Head Smash until either you win or your Head faints. How many pokemon you KO with Head before getting KOed determines what happens next.
Not even one: Head is ashamed of itself and must be released.
Just one: Head thinks it needs to train its Head Smash more. As such, it must solo the next 2 trainers you battle using only Head Smash.
Two: Head realizes that its ability is sturdy. As such, it may now learn Metal Burst, and must use it to solo one of Barry's pokemon.
Three or Four: Head is baffled by how it got KOed when its Head Smash is so powerful. It starts to think that maybe it is too powerful. As such, it may use only BP 100 or less moves for the rest of the game.
Five or Six: Head thinks it is too awesome. As such, it may only battle against your rival, gym leaders, E4, and Cynthia.
Six without fainting: Head thinks it is the strongest pokemon on the planet. As such, it will only battle against E4 and Cynthia.
I also want to remind you guys that I still need 4 more pokemon before I can begin my White 2 scramble.
Here are the requirements.