Just remove Stopwatch
We need talk guys.....Stopwatch is not ok.....
League used to challenge players when they considered playing defensively, now Stopwatch just remedies all of that prior danger, allowing you to effectively halt your opponent's offense in their tracks.
Other games have this sense of danger, League currently does not when you have an item that almost completely removes it.....and you get it not for 100 gold, not for 3000 gold not for 4000 gold, but FREE. You get this gamebreaking item FOR FREE.
If I was playing Monopoly Stopwatch would be a get out of jail free card if every player had one. If I was playing Halo Reach Stopwatch would be Armour lock. If I was playing Overwatch then Stopwatch would be Mei's Ice block but on steroids, but everyone has it. My point being, Stopwatch slows the game down far too much and rewards the player who's always on the defensive and/or the player who isn't that adept at playing the game or certain role/champion.
Just look at the clip I've linked, this is not ok in the slightest.
Additionally from a personal POV it's an absolute nightmare since I play assassins and aggressive champions similar to that nature. When the "reverted" Rengar hit live servers yesterday I was over the moon excited to play him, however upon playing numerous games of him I've realised that I simply can't do anything since Stopwatch (and also a cheaper Zhoyna's) exists (also shields are broken beyond belief). Whenever I ult jump onto someone they Stopwatch my entire combo. Whenever I'm about to kill them, they Stopwatch.
I can agree that hyper aggro champions/metas are not fun to play against, however neither are hyper defensive champs/metas. There's no fun in the game when your opponent can press one button and absolutely ruin your play.
Also, it's worth noting that my friends refuse to take Stopwatch simply because it's anti-fun. They still take Zhoyna's, but let's be real, you sink actual gold into Zhoyna's for its gamebreaking active.
I think at this point it's absolutely clear that Stopwatch was a step in the wrong direction and I think it's high time that it gets removed from the game, freeing up a rune slot in Inspiration for something more healthy (of course this would also mean removing Stopwatch as a purchasable item as well).
Invulnerability should only be given to certain champions as their abilities or on Zhoyna's active. League should not have a third route accessible to everyone that is free (or cheap) unless they purchase Zhoyna's. Zhoyna's should be the ONLY way that champions with no invulnerability abilities can access invulnerability. This both makes the game fundamentally sound and makes the active of Zhoyna's feel even more valuable.