Hear me out, what if you could pick alternative kits for your champion? For example:

>Lux
W (New): Lux carves a path with her wand that grants movement speed and a shield over time to her allies for a few seconds. The path also damages and slows enemies over time for a few seconds.

E (Alter): No longer slows while it's up, instead. It deals damage over time while it's up to enemies and slows them upon detonation.

R: Lux channels to fire a big laser that damages and widens over time. It deals less upfront damage, but it can be moved. The laser has less length but more girth instead.

>Jinx
Q (Alter): Now has a chainsaw gun (gunsaw?) instead of a rocket launcher. Jinx gain increased range, damage and bonus movement speed upon hitting enemies. Damage and movement speed increase upon hitting the same enemy. If she gets a takedown, she keeps the stacks for a few seconds.

E (New): Jinx dashes, leaving behind a trail of turtle chompers that damage and slow enemies who pass through them. If an enemy has three chompers on them, they are rooted. Cooldown resets on takedowns.

R: Jinx commands an airplane to drop the Gray in a large area, enemies in the smoke take damage over time and increased damage from all sources, Jinx also gains increased movement speed and damage in the Gray. Jinx will also briefly enter stealth if she gets a takedown in the Gray.

>Ahri
Q (Alter): When the orb reaches its max range, it briefly stops before quickly homing to the nearest enemy then detonating, dealing damage to all enemies around it upon arrival.

W (New): (a softer Spirit Rush) Ahri dashes (once), dealing damage to three nearby enemies. Cooldown resets on takedowns.

R: Ahri summons a fox spirit that briefly channels before quickly rushing in a line, dealing increased damage to low health enemies it passes through, pushing them towards its max range and healing ahri for each enemy hit. (Think of it like a Yone R or an old Aurelion Sol R you can summon)