A way to change Kleptomancy
As someone that has played around with this for a week especially as support even as playing on Sona with this I would rather see it as a bonus to shields and heals in a way where it would be grants a bonus amount of gold or a random item after shielding/healing an ally target with a set cooldown of around 10 seconds after it has been cast and does so to an ally rather than on self to prevent self gold gain abuse also.
I know it may sound silly to be honest but to me this I feel would cause the state of the game since it is preseason to go in a healthier direction to prevent champions from turning to this to abuse for a gold lead for damage items with this keystone.