keystones were the worst thing to happen to game balance

but lets not remove them! keystones definitely didn't give champions with already good burst even more, thus making them even more oppressive.

keystones definitely didn't make champions able to build full tank and still dish out retarded damage on top of that

literally part of the problem with season 6 was that TLD fervor, and warlords made already strong champions way too strong.

TLD made: 's burst even better. have the ability to r+w and chunk out 70% of your hp if you didn't manage to kill her in laning phase. burst and harass much stronger thanks to proccing her passive giving 2 stacks these aren't even all of them

fervor made: tank be able to stack a shit ton of damage, while being impossible to kill all marksman save for a few into ridiculous burst/sustained damage monsters(along with shit itemization) still not even all of them

resolve is a joke, and its keystones are laughably weaker than these two save for strength of the ages.

deathfire's grasp is a joke, and is never picked unless you're stacking 900+ ap

warlords bloodlust was absolutely fucking broken on release, and got nerfed into a worse state. it is now a niche mastery picked for people who think they'll have trouble keeping alive in lane. still does fucking nothing late game because everyone's melting eachother thanks to tld and fervor

literally only 3 keystones are must picks right now. the rest are niche and incredibly situational.

please, do more work on the mastery system, because it's absolute shit, and part of the reason why you're having a balancing nightmare with so many champions.