Riot does not want support having their power in their kits but...
's passive is a prime example of an ability that forces her to play support and is a strong portion of her kit. Riot should also change her roles in the store. She's definitely not a top-laner.
If you want more power in kits, and less in items, then make abilities/passives of supports depend on others or the quantity of allies/enemies around them. This means if they wanted to go to a solo-lane, like top or mid, they would find themselves at a disadvantage.
