Rageblade balancing
TL;DR Nerf base damage, increase scaling (ad and ap) & make it stack the same on both melee and ranged.
I know everybody has had their share at complaining about Rageblade and its affect on the game (
). It really does make bruisers strong, it gives high base damage, attack speed, and attack damage. An item that will make any melee dish out loads of damage. But I have an idea on how to balance it. If Riot's intentions were to make it a viable hybrid damage item and not a bruisers fantasy I think there is one simple solution. Make the stacks stack up the same on both ranged and melee, and lower the base damage for the passive but increase the scaling of it (ad and ap). Now if and when Riot decides to do this they really need to make sure to hit the base damage hard. Otherwise the stats on the item would make up for it. It already is an item suited for late game scaling champions, so a compensation on base damage for ratios would hit bruisers the hardest. Either forcing them to go for a damage focused build, or just deal overall less damage. And coming back to the stacking part. One of the most annoying things with these bruisers is how they can stack up the item relatively fast, I mean most of these champions can dive so it only takes a second to start dealing damage. Making those bruisers into more of an assassin. Which wasn't intended, so it would make sense if Rageblade also took a while to stack on melees. They are building tanky already so I am sure they can take the damage long enough to get that juicy Rageblade damage. 
hell it even works on
