Did it ever say Champion N in his title? No it said Team Plasma N, and him being Champ(even if he is considered officially Champ) is instantly devalued even if he was official since he used a Legendary of the caliber of Zekrom/Reshiram against Alder(imo). Blue just got done beating Lance, but he was still titled Champion Blue, so if N was Champ for the slightest time I think he would have the title of Champ.