AD Ratio
So in the new 6.6 Patch Update, they changed Yi a bit. However, I don't know how AD ratios work so I'm not sure whether Yi was nerfed or buffed. It says:
_RATIO 0.1/0.125/0.15/0.175/0.2 total attack damage ⇒ 0.25 bonus attack damage at all ranks _
Can someone explain what it means please?
(especially since Hydra also got its AD nerfed).