I had an idea with a new support champion based with forms like Kayn. It should be support that won´t stack passive like by attacking champions,he would choose his form at lvl 6.He would change between the offensive/defending form based on how is game going. His spells would be same but after change they would get offensive/defensive attributes like, OFFENSIVE - Ability gives Attackspeed/Armor penetration / DEFENSIVE- Ability gives Armor/Magic resist/Tenacity. OR OFFENSIVE- ability reduces champion´s armor / DEFENSIVE- Ability gives slow. Build would change as well, with defensive form items like or in offensive form Style like this would give support chance to choose between his own style of play (aggresive supports / protective supports, what he prefers to play) or depending if they are winning / losing lane. Skins would be interesting as well with choices ("O" offensive, "D" defensive) light - D,dark - O, Ice - D,Fire - O... etc. I don´t have drawing skills to better show you my idea but i guess it´s a pretty solid concept. Tell me your opinion.
About his story,i think he should be some kind of a Shaman from forest that helps his village,like a local healer, that got some holy power,but he has to choose between 2 ways, if he wants to use his power to heal (Defensive form) or destroy (Offensive form)
With a basic skin I think the concept of water / fire perfectly fits into Heal or Destroy style, as a back he would raise 2 little flowers,on the first one he pours water and she grow up or smthing, and the second one would burn after wards with a quote like " I can heal,either destroy,the choice is yours." or smthing like that,but after changing form he would say smthing Defensive / Offensive.
Some friendly quotes with a champions (etc. like a nature theme) and negative with a mechs
It should be support that won´t stack passive like 
or in offensive form 
Style like this would give support chance to choose between his own style of play (aggresive supports / protective supports, what he prefers to play) or depending if they are winning / losing lane. Skins would be interesting as well with choices ("O" offensive, "D" defensive) light - D,dark - O, Ice - D,Fire - O... etc. I don´t have drawing skills to better show you my idea but i guess it´s a pretty solid concept. Tell me your opinion.
(etc. like a nature theme) and negative with a mechs 
