Champions that have synergies or ratios gutted to adjust for the addition that Fervor of Battle gives
Except maybe Lucian, none of the one who quoted have been adjust because of Fervor. Furthermore when too many champions are going borderline OP because of a keystone it's the keystone that get nerfed.
Yi's been atrocious with it all PBE preseason
He's been OP with it. Just like some Marksmen. This is why they put this keystone on a cooldown so it won't be almost constantly up.
Jax needs to walk with his opponents and so the actual use of over-capped attack speed diminishes severely, and Irelia doesn't get enough attack speed items to get any real benefit out of Tempo.
The fact that Lethal Tempo goes over the cap is a big plus. But you can still make use of it for both of them. They're great duelist, both builds Trinity Force so they can stick easier to a target and got CC to help them do that. So yes they can use Lethal Tempo if they want to.
PBE is meant to help shape the new system and catch bugs, preseason is to buff out the rough spots and help people get adjusted.
PBE doesn't shape much. That's why Galio or Janna went live as they were. Because Riot needs larger data to properly know what they're going to do. Catch bugs is definitely the main things about PBE, balancing is less important (I didn't say it wasn't important at all) but partial data of a community who needs to play on higher pings isn't as useful as a 10 Regions trying out the new changes.
Preseason isn't where huge changes are made like completely changing a key rune.
Actually... Yes this is the time where huge changes can be made. This is why we are receiving the new system because it's a huge change. And Yes they can completely change a rune during pre-season. Except maybe it's the very last patch before the new season.
They're two times where huge changes can come: Pre-season and Midseason. That's it.
I played a whole custom game using it, as a jungler, and y'know what? By the end of the game, the total damage it offered was.. 3k extra overall damage. Spread out among 5 champions, throughout the entire 30 minute game, and that's not guaranteeing kills.
Who did you play? Who were you against? That can change a lot. Specially when you need to land 3 consecutive auto attacks. Obviously if you went for any caster jungler it will be harder to do. How do you know it was only 3k offered in total?
IT'S ALREADY BEEN IN THE GAME. Expose Weakness. Only, not gated behind a three-hit passive, and it's clearly not worth a TOP TIER rune slot seeing how it's been in the game forever as a basic mastery.
Not really. if you want to compare it to something try Vladimir. 10% more dmg from all sources on his R. And that's huge by itself. The only thing I found poor with this mastery it's the fact that's it's gated to Basic Attacks.