Remixing Champ Kits to place them into other roles

I just wanted to start a discussion on some cool or just funny ways to rework some existing champs that would change their role

Swain: Changing him from a traditional mage to more of a AP marksman by tweaking his kit a little.

Passive would change from its current form of being a mana regen machine to making his auto's have an AP component, and that the magic damage from it and his Q can proc crits. to make sure his autos aren't too OP, the normal physical damage portion of his auto's can't crit whatsoever. His Q, W, and E would remain thematically unchanged though the numbers would have to be tuned around the new passive. with his R, he'd keep the whole " evil Big Bird" motif, but instead of the little birds auto locking unto nearby enemies, the ult would passively give him more spellvamp and lifesteal the longer he stayed combat, and the active give him a steroid that empowered his auto's with more magic damage, and those little birds that shot out during the old ult,....would come back into the ult as a sort of temporary Runaan's buff that returned more health that the passive portion of the it does.

This next is just for the lolz, but after the seeing the stuff Riot has done with newer supports like Braum and Tahm, I would like to see..... da da ta daaaa! Support Hecarim!

First his passive( sets the whole thing up) is that his allies can ride him. He can bind one ally that will have the option to mount and dismount him whenever they wanted during the game, or any ally he uses his E on will automatically be mounted on him for a short period of time. While a player is riding Hecarin they can engage in combat, but they can't control their own movement, Hecarim drives his own chariot. Also while mounted Hec and his riding buddy share/split damage taken, usually Hecarim mitigating the damage his adc would take. His Q and W and R would remain largely unchanged, but his E would now flips enemies backward and allies behind him like Singed, but as I said in the passive, when he's unmounted , the 1st ally for him to E would be automatically mounted and any other ally E'd while he has a passenger would be thrown a safe distance behind you.

Anyone with any other crazy ideas..... Soraka "Banana" ADC?, we know Wukong would like that. "Sniper mage" Caitlyn?