After worlds, make sure to REVERT THE UNNECESSARY BUFFS you gave champions instead of nerfing other!
As a
OTP myself, it would really hurt seeing my champion go from a 50% winrate, get a buff to his R for no reason and jump up to close to 52% where he is now and then get a nerf say to his base AD. Just make sure you revert the R buff once worlds is done and when it's needed.
Same thing goes for
, this guy was at 51% winrate last patch and he now sits at almost a 55% winrate in Korea, 53% elsewhere. Totally unnecessary buffs and I get that it's for worlds but just remember to REVERT the buffs and NOT NERF SOMETHING ELSE unless it really is needed of course.
Next patch it's
's turn although he already sits at 51% winrate at 24% pickrate!
Edit: Stats taken from Lolalytics

unnecessary buffs