Keystone masteries!

Now that warlords isn't breaking the game with tryn and yasuo and league of thunderlords ended, keystone seems to be in a really good place. top lane takes grasp of the undying or strength of ages, supports take thunderlords, windspeakers, strength of ages or bond of stone, jungle takes strength of ages or other, mid takes thunderlords or deathfire, adcs take fervor or thunderlords if you're ezreal or corki, Yes, there was a time where thunderlords was broken and everyone would build it but that time ended and keystone masteries are pretty balanced except for warlords and stormraiders but yaknow you can't have everything lol. maybe make stormraiders into an anti assassin keystone? so a small level-scaling shield would occur after x amount of damage like stereks and warlords would turn into keystone for jungle sustain