Here's some Akali nerfs without touching her numbers.
Not all of these must apply
Get rid of her healing from Q in lane.
Increase energy per cost on her Q
Allow me to at least auto attack before she hops back into her shroud.
Increase her shroud cooldown
Allow me to control ward in her shroud.
Get rid her of stun in her ultimate.
Stop allowing her to push me behind my tower when she is level 4 because of her shroud.
Get rid of her movement speed in her passive and allow me to see the ring.
Get rid of her restoring energy in her shroud.
Decrease the time she has before she can use the second part of her ult, cause as it stands, it's 7.5 seconds.