What about an Inspiration Keystone that reduced the cd of your passive?
Alright, so hear me out.
If im correct, there have never been any way to reduce the cd of your passive. And tbh i think the folks at riot had a good reason not to implement something like this: it would be kinda broken right? Or would it?
With making this a keystone, most of the champions taking it would lose out on a lot of dmg since they wouldnt be able to take an offensive keystone(Kinda like unsealed spellbook), so that could be something that this could be balanced around. Im not exactly sure how could it work, since just giving a raw stat would be kinda lame for a keystone, maybe something like how ultimate hat used to work could be a possbility(everytime u use your passive its cd gets reduced up to a certain cap) This would solve the problem of having really low cds at early levels on passives, but on the other hand it doesnt really pose a kind of interaction a keystone should have imo.
What i like about this is the large variety of champions and strats that a mechanic like this could be applied to.
could be having their revives up more often
could utilise hes passive even more, making it have a bigger impact
even more mana sustain in lane
being able to get their stacks more often
would be able to have tentacles/plants down more often
could be able to mount skaarl faster after dismounting
could put down more turrets
would be able to trade more often in lane safely
And there are dozens of more expamples(champions with cdless passives would have a different keystone set for them from inspiration perhaps)
You prolly looked at some of these and said: thats just too op. But as i mentioned you have to count in the fact that these champions wouldnt be able to use their "default" keystones as a result.
Kled wouldnt have conqueror/pta for more dmg, Azir would lose early game pressence and burst without taking electrocute, kindred would lose out on a lot of dmg during ganks for taking this. Etc, etc



Will become a ranged champion at level 13
Will be healing himself with every spell
Will only need to leave combat for 1 or 2 seconds after level 11 to start regenerating
Will be healing even more often
Will be rooting the same target every 3 seconds at level 16
Will be hitting you with his passive every 3 seconds
no ty