Instead of having flat bonuses let those have i.e.:
- Enhanced Damage per level scaling
- Attack Rating per level scaling
- IAS per level
Make it so common uniques have max of around 300% ed at level 99 and elite uniques max of 400% ED ranging of 0.5-1.5 per level for common and 0.5-2.0 per level for elites.
Or even a flat %ed + per level ones.
Uniques will become more useful in a wide spectrum, not having to throw it in an hour of gameplay cause a common exceptional item will deal more dmg than a unique Patriarch I’ve luckily found. If I will even find it before it goes into useless state.
That way i.e. :
Eth Death Cleaver will reach 530dmg with 400%ed which is on par with BotD just with different mods - like DS which will make it pretty strong and very good item to hold on to.
Non eth Earth Shifter will have 180dmg more (900dmg)
Grandfather will jump to 822dmg (from 650dmg) 2-handed as non eth item.
Eth Swordguard (ZOD) might become decent budget item having 774dmg (350ed), very low stat req (eth + built in -50%) with defensive capabilities.
Some items will suffer form this change though like Bone Snap unless there’s flat+per level gain or AR per level added to balance it out. Still for late game its a a good change and similar can be done with armors or spell casters items.