I don’t think gold toughness is a bad mechanic per se, most of the issues come from how much you can spam them thanks to the ludicrous amount of CDR
Regardless, even if that is solved somehow, I think there are 2 changes that I’d like to have for it
1- It should not deny overheads from maulers and crushers
Quite simple, the point is that they make you go down, don’t allow someone to bypass that just because they pressed F before
2- Damage Reduction should not apply to the over toughness
For example if you have 100 normal toughness and 100 over toughness, and you also have 50% damage resistance, make that resistance not apply to that 100 extra toughness