Akali Rework Idea
Pls read instead of auto downvoting me because of Akali. Some of the numbers are just ideas and placeholders.
Passive: Twin Disciplines: Discipline of Force: Akali's basic attacks deal bonus on hit magic damage (scales with AP and AD)
Discipline of Might: Cooldown: 12 seconds Scaling: Bonus AD While near enemy champions, if Akali is hit by an enemy champion spell she gains a shield for a short amount of time (small base and high scaling). This shield increases with the number of champions Akali is around when she is damaged by a spell. Damaging champions with spells lowers the cooldown of the passive effect by 2 seconds.
Q Mark of the Assassin: Range: 850 Cooldown: 7/6/5/4/3 Cost: 50 Energy Scaling: AD and AP Akali throws out a Kama in a straight line that marks and damages every target it passes through for 6 seconds. If the Kama hits an enemy champion Akali gains 10/12/14/18/20% spell vamp for 5 seconds. The duration is refreshed if she hits a champion again with another Q. The mark can be proced by auto attacks and abilities for bonus damage and will return 40 energy.
W Twilight Shroud: Range: 700/400 Leash Range: 600 Cooldown: 22/21/20/19/18 Initial Cost: 50/45/40/35/30 Energy Second Cast Cost: 40/35/30/25/20 Duration of Reveals: 90%/80%/70%/60%/50% Slow: 10%/15%/20%/25%/30% Akali throws down a shroud of smoke and is stealthed while she is inside it. Using an ability or auto attacking while in the shroud will reveal Akali for a short amount of time before she is stealthed again. While stealthed in the shroud Akali has increased energy regen. Enemies in the shroud are slowed. Akali can activate the shroud again (costing more energy) and when activated the shroud explodes (procing Mark of the Assassin) and Akali dashes to the middle of the shroud (within a certain leash range). As Akali puts more ranks into the ability, reveals will be less effective against Akali and will last for a shorter duration. Pink Wards reveal Akali for 5 seconds.
E Shadow Dance: Range: 660/670/680/690/700 Recharge Time: 35/30/25/20/15 Cost: 1 Essence of Shadow Scaling: AP
Active: Akali dashes to a unit and deals damage upon impact. This ability does not proc Mark of the Assassin. Akali can store up to 3 charges gaining charges of Shadow Dance periodically as well as 1 stack through kills and assists.
R Crescent Slash: Range: 600 Cost: No Cost Cooldown: 70/55/40 Movement Speed: 50% Scaling: AP and Bonus AD
Passive: Targets marked by Mark of the Assassin grant bonus range to Shadow Dance of 50/100/150 against them.
Active: Upon activation, Discipline of Might's cooldown is reduced by 80% of its current cooldown. Akali sends out her Kamas in a massive AoE around her and marks all targets hit with Mark of the Assassin (no cast time). Targets that have already been marked by Mark of the Assassin take the proc damage but are not reapplied with the mark. Akali can use this a total of 2 times (with a static cooldown of 1 second between casts) and gains movement speed on each cast.
Summary: No longer has free spellvamp to make herself a sustain monster in fights. Now she has to land a skillshot to get spellvamp that isn't permanent so she has to take advantage of fighting to make use of it. Instead of the free spellvamp she has a temporary shield that acts as a second form of defense because her shroud is still somewhat unreliable as a defense mechanism. By playing well she can take advantage of being able to lower its cooldown so she can stay safer more often but it doesn't act as a get out of jail free card. She still has the bonus magic damage on hit because that's the Twin in Twin Disciplines.
Her Q is now a skillshot so she can't instantly kill people with her targeted damage with little counterplay so people have a chance to outplay and react to her. As said above, she doesn't get free spellvamp anymore but now if she lands her skillshot she is rewarded with spell vamp for a short amount of time. It now has an AD scaling to go along with it to emphasize her dual scaling play style.
Twilight shroud, for the most part, acts the same with a few new effects. She can now dash back to the middle of the shroud and cause it to explode to proc Mark of the Assassin which gives her an opportunity to outplay her opponents if she uses it will and screw up if she plays poorly. Think of it like the second part of Zed's ult only it is limited by a range (only 200 more units than the area of her shroud). In addition, it no longer has the movement speed bonus and instead is able to lower the duration of reveals including pink wards. Note that at rank 1 it only reduces the duration of reveals by 10% which is not that much and only gets down to the noticeable 50% reduction at max rank. This still offers the enemies tons of opportunity to beat her up while in her shroud with reveals but she is no longer completely hard countered by pink wards and reveals.
Akali's E is now her current ultimate and works the same way for the most part. Her dash can still store up to 3 charges and gets extra charges on kills and assists but the difference is that it has a lower range than it does now until max rank and that the initial charge time for the charges is a little higher at early levels and the same at max rank. This makes it so she can't totally zone people with her ultimate because of its shorter range early on as well as her Q being a skillshot.
Akali's Ultimate is now a reworked but similar version of her current E. It has an interesting effect now as a passive that allows Akali to have bonus range on Shadow Dance against targets that are marked by Mark of the Assassin. At rank 1 of her ultimate and max rank of her Shadow dance she can get up to 750 range and at rank 3 of her ult and max rank of her Shadow Dance the range can get up to 850. This allows her to chase her targets really well but only if she plays well and lands her skillshots. The quick animation and no cast time of her ult makes her assassination pattern still very quick but not completely targeted so she can still mess up and miss. It also gives her good waveclear when she needs to clear a wave like she can do now with her current E only it will be on a higher cooldown.
I think overall this seems pretty good because she is still good at chasing her targets but can't faceroll her keyboard to victory if she gets ahead with her targeted damage. She still has a good assassination pattern but it can be dodged and outplayed if she misplays or you outplay her. She also has a way to survive better in fights and isn't as much of a sitting duck while she is in the middle of the enemy team but still has plenty of opportunity to be outplayed and killed. It also fits her theme pretty well as a hyper-mobile, high damage assassin that dodges in and out to chase her targets to kill them.
The only problems I could foresee with these changes would be tank Akali becoming too powerful but that wouldn't be too much of a problem because she has minimal utility and it could easily be fixed with base number and ratio changes. She also may be too good at chasing and killing her targets but that could also be fixed with number changes as well.