Akali

These two changes are intended to give Akali's kit some utility. With Twilight Shroud now granting vision where it's placed, Akali can perform interesting jungle and lane jukes by first casting Twilight Shroud to gain vision of an enemy or jungle monster, and then using Shadow Dance as an escape tool. Overall, it should be a cool little trick that adds some depth to this ability.

Twilight Shroud
Now grants vision in the area of effect
Shadow Dance
Essence of Shadow charge time reduced to 30/22.5/15 seconds from 35/25/15



Caitlyn

Caitlyn was crowding out a lot of other AD champions with her potent siege capabilities and strong lane trading potential. We wanted to highlight her weakness to extended trades as a sniper by reducing her base attack speed.

Additionally, by removing the accrual of headshot stacks when attacking turrets, it'll be a little more difficult for Caitlyn to perpetually siege towers in early game while zoning out enemies with the threat of a headshot.

Base Attack Speed reduced to 0.625 from 0.668
Attack Speed per level increased to 4% from 3%
Headshot
No longer gains stacks when attacking structures



Cassiopeia

Twin Fang
Now counts as a single target spell for the sake of items like Rylai's Crystal Scepter



Diana

As a melee champion, Diana should have an inherent weakness to lane harass. These changes are to reduce some of the safe and efficient wave clear Diana was getting from auto-attacking with her shield up in lane.

The shield change will help Diana in mid- to late-game team fights when she needs to dive into multiple enemies to engage. Before the changes, Diana's shield refreshed almost