On patch 9.18, Akali’s getting her ult nerfed, damage nerf, microstun removed and ult's cooldown to 160s (cooldown commonly used for global ults), which means you can ult once in level 6 and wait till level 11 so you can ult again. Balance Team have no ideia what they're doing with this champion and she needs a revert.

With the current patch 9.18, 5 mechanics that were introduced with the Akali Rework got removed

Q heal

W Obscured

W stealth under enemy torrets

W extended duration

R1 microstun

Riot needs to quit being stubborn. Akali has proven to be a balancing nightmare and AGAIN, they have no ideia what they're doing.