Late game it is possible to solo baron nashor with Kindred.
It's a far stretch to say this, but I was in a custom game with intermediate bots. With 14 stacks of her passive and this build:

(Cleaver probably not needed, but I was trying stuff out.) It was possible to solo baron without smite or using her ult at around 37 minutes.

. You can do it with
with or without the dragon depending on how late the game is. I've done it as
, doing it as
is also childs play. I've seen
do it aswell