DarkMagician

DarkMagician is the slash ship between Magician/Ales Mansay and Mr. Dark from the Rayman fandom.

Canon
There's no romantic link between the characters in the series.

Rayman 1
In R1 the characters have been presented as opposed to eachother. The Magician was then on the side of the good guys by helping Rayman with his adventure by offering an extra life in exchange for 10 tings.

Rayman Origins
In Rayman Origins he was revealed to be the main villain of the game. Magician has Mr. Dark posters in his office with a heart on it. Also in the beta script of Rayman Origins he favorably describes him as 'dark and mysterious' and wishes to be like him.

Quotes
"I always wanted to be like Mr. Dark: mysterious, dark!...um, dark and mysterious.. Ha-ha!..."

Fanon
It is unknown how the ship started but it most likely gained traction when Rayman Origins have released. In the fanon the ship is usually portrayed as one-sided with Magician being the one in love, with sometimes the feeling being reciprocated by Mr. Dark. Both of them are sometimes portrayed as parents to Raymesis/Dark Rayman (Mr. Dark created him).

Fandom

 * TUMBLR

Trivia

 * In one of educational games from Rayman 1 era the Magician calls Mr. Dark 'Mr. Dork", or at least sounds like it... (if you do consider R1 Magician and RO Magician to be the same person.)