Dual Champ Idea

Champ Idea - Champ starts as AD champ, with normal AD abilities for their Q W E. When R is activated, all the AD points and AP points flip, as well as abilities to a more AP centered set of abilities. It could be OP, but keep in mind his ULT is not an actual attack of any sort, just a switch. Just and idea, could work well as jungle, where AD for jungle and AP for ganking. Also similarly could be a support, where AD for normal play and AP to assist in kills. Feel free to comment ways to balance, ability ideas/sets, or just thoughts. I'd like the name to be Flubber. :D