Cho'Gath Spikes
I love Cho'Gath as a character I feel he is thematically really cool and his kit has some stuff even it doesn't mesh too well with itself. However he is definitely showing his age. I do not know if there is a rework planned for him or not in any reasonable time span but I had an idea that might give him a nice quality of life change.
have his Vorpal Spikes (E) scale off of Health instead of AP. I dont know how to balance but i would assume having it scale 1-2% of his max health or 1-3% of his bonus health seems fair. It makes it so his Feast Stacks do more than just help him survive and rewards tank builds. As a "melee" Tank/Mage you need to be in the middle of a fray to both AA and Feast so doesnt it make sense to give Cho just a little bit more of damage in that arena. Thematically its cool because not only does his Vorpal Spikes get bigger when he does they also hit harder.
and always remember the Cho'Go will a Go-Go