Diana is the worst mid laner in patch 9.9. Riot gave a massive nerf to a struggling champion and did not think to give her compensation buffs???
_Diana's W - Pale Cascade no longer deals more than double the damage when using R - Lunar Rush at close range_
She was already below average in patch 9.8, and only one tricks played the champion.
As of the nerf ,Diana dropped 3% in winrate, now at 47% (which is really bad for a champion with such low pick rate)
She is not even viable anymore in high elo. The best Diana's are struggling this patch.
Patch 9.9 is rolling out soon and still no buffs for Diana???
**Here is a quick, easy buff to give back some lost power**
_Pale Cascade CD - 10 sec > 8.5 sec_