Nerf to LeBlanc
As we all know, LeBlanc is pretty much the only champ that can still 100-0 a mid game tank without the likes of DFG (RIP). As she does this, she has very little risk for how mobile she is and being able to Distortion twice with her mimicked ultimate. I believe the best way to nerf LeBlanc without rendering her useless is to make her more risked adverse by adding a recast cooldown onto her Distortion ability/ Mimicked Distortion, just as Riot has done to Zed's Deathmark shadow. It will require her to use more thought on when to engage and when to try and blow up a target. This won't remove any damage on her kit, it will just put a risk on her to do the damage instead of dishing out the damage from a screen away and take no damage in return. Thanks for your time!