Guide A Comprehensive Guide To Durability Degration

You should fix this to just skill points. Negative ids do degrade, meaning they become much less negative than before. Visually it doesn't, but when you check your stats through your compass, it does. Hence why flipping Large Lapis is broken AF.

For example, -50% spell damage becomes -5% spell damage at 0 dura.

I'm willing to bet that this is a bug but not sure if it's even intended.