What are you even talking about? What did I learn? I mean as a rational human being who can notice that hey when you fail a rework FIVE (5) (1, 2, 3, 4, 5) times. Something is wrong. Something in your philosophy is wrong. That should be obvious to ANYONE. But wait, hold up. Lets count the number of failed Ryze reworks, what are we on now, 3 or 4 for that?
And it's not my job, to tell Riot Games how to do their job. If they can't figure it out, me providing 'feedback' a solution to the problem, doesn't help anyone because I don't get a say. Anything I come up with, even though I could come up with something, even if it's the greatest potential solution to the problem. It's a waste of my time. I will not be heard, nor listened to, nor have any contribution to fixing this game. I can identify where their failings are because I'm not an idiot. EVERYONE seems to notice but them, not just me. There are surprisingly a lot of intelligent people that play this game, and a lot of league analysts agree that riot has pretty much shit the bed. So I expect they should do a better job, because it is their JOB. It's not my JOB as a player to fix their game for them. I want a balanced playable experience, not a job in which I have to fix their messes for them for nothing.
"Removing things from league"
"Only valid solution when the community deems it necessary." Are you just like, really high? All the time? What are you even talking about. I supported them deleting SotA, because it was over-tuned and they couldn't get it right. And then, it was so stupid of them. Ignoring your dumb semantics. To replace it with something that serves the same purpose to add survivability. And I'm ignoring your semantics because CotC is a bigger offender than SotA was. The shield is huge and over the course of the game will have let you take more damage than SotA ever could. And it can activate even when you're at max health and activate multiple times in a fight. And that is a failure, plain and simple. I can as a human with a brain look and say "Ok, you've failed at two keystone masteries that grant burst tankyness. There is a problem here." And much like Rift Herald, they said they're considering removing it because it isn't impactful enough. And although I believe they should buff it instead, removing it is also a solution. If that's what they want to do. At least it is a SOLUTION. And that's why people suggest removing it (And that is removing Keystones specifically not the entire mastery system, although at this point they probably should just remove it), because it is a SIMPLE SOLUTION. And repeat it with me it is a SOLUTION. And it's a SOLUTION, that Riot Games can't mess up. It is the simplest and quickest solution to the problem.
But I'll humor you for a moment, can you do math? Have you learned math yet? Lets do some math; Max level SotA vs Max level CotC AND 1st level CotC vs 1st level SotA. We'll start with level 1, so first off SotA requires you to build up. So at first level, you get nothing. You (even though there is no siege minion first wave, and even though you're not going to be ganking after killing 1 large monster, we will for the sake of argument give you on stack) get +20 for a siege minion, or +10 for large monster. So early game, you get 20 or 10 health. Against CotC which grants 10 +10 (perlevel) + 5% of your maximum health, and we'll give this to someone currently high in the meta. Hecarim is pretty popular in this meta and has relatively low base health, and ya know what. We'll say that for some reason he has no other masteries or runes (or items, even at max level). So level one with 518 health, so 5% is 25.9 (so 26). So 10 + 10 + 26 we get a 46 health shield, every 45 seconds. To use when trading. Compared to +20 health (that caps at 300), which you can't get until siege minions start spawning, 2:15 seconds into the actual game, as opposed to getting 46 health shields instantly. Then siege minions spawn every 1min 30seconds after their first spawn. So in that time you can get two 46 health shields while trading, when you could only have 1 +20 health. Now at max level, you get a maximum of +300 health putting Hecarim at 2411 with no other buffs whatsoever. However, with CotC we get 10 + 180 (+10 per level) + 105 (5% of 2111) for a total of 295, shield every 30 seconds. With NO health items. And as people who take CotC will buy health items, and Hecarim has a low health pool overall we can know for an INDISPUTABLE FACT, that CotC will provide more benefit overall throughout the game. And we can know that thanks to math.
So my question is; how can you be so daft, as to fail to have basic problem solving abilities. Just because they're a company and it's their game, doesn't mean they know what they're doing. They're people. Plain and simple. And just because someone isn't part of the company doesn't mean they can't determine where the company is failing. The point is, that I and many other people have made is that it's -painfully obvious- where they have failed. And their inability to pinpoint their failures makes them look dumb.
In conclusion; the old masteries weren't working, these new masteries aren't working. The masteries before the old masteries weren't working. Ryze wasn't working, the Ryze before that wasn't working. They NEED to change. There's nothing else to say about it. And the thing is, there isn't just ONE SINGULAR ANSWER. To the contrary there are probably a myriad of things they could do to solve the problem. There are so many potential solutions out there. And yet, what do they do? Make another keystone in the same vein as the one they remove and it's overtuned. It is a farce. Do you understand how OFTEN they do things like that? It happens so frequently that it's become a joke. It makes their company and everyone who works on this game look like a joke.