I kinda feel like some of the keystones are in the wrong tree due to redundancy
Ok so I first started thinking this when i was looking at Press the Attack vs Lethal Temp being functionally redundant with PTA essentially being superior in 99% of cases. Looking at the rune page as a whole I was thinking that Arcane Comet and Summon Aery are also somewhat redundant with both serving a "Poke" niche
Electrocute, Comet, And summon aery could also be moved to better flesh out the trees and make the idea of choice really independent.
In my mind, press the attack would be more functional in the domination tree in place of electrocute, In addition I feel as though comet would work better in the precision tree due to it lacking a poke keystone, with PTA users likely opting for lethal tempo. Finally I'd move electrocute to the sorcery tree.
This would allow a poke and a fighting/all in mastery on all three of these trees.
the primary reason for this whole idea is to get rid of picking between two choices in one tree where one is clearly optimal every time, the use of comet for example, while good, is somewhat over the top recently. where the use of aery works functionally the same but with less damage and more reliability+versatility
A caster adc could if they wanted take comet, such as a jhin or a cait, without it being the worst choice in the world and the all in style'd adcs or demi adcs, like lucian, kaisa, or vayne, could make use of press the attack in the domination tree.
sorcery would still be viable to pick for champions like zed or talon, and would offer some in combat move speed or cdr if they need it. Of course they would likely go domination secondary for the spooky stacks and cheap shot.
Lethal tempo isn't bad, i just think it's bad when compared to like... press the attack. For example a twitch with lethal tempo would still deal pretty massive damage, but he would have to maintain his range and positioning for a little bit longer than he does with press the attack. So LT encouragement would be positive for the game as far as I'm concerned.
Bruisers often take domination, and I think that PTA fits them better than electrocute, since almost every bruiser is an AA weaver at heart, Other fighters, such as riven or fiora, also function better when they are properly using their auto attacks
the burst offered by electrocute is also somewhat redundant with the burst offered by dark harvest, only the conditions of the proc matter, so dark harvest is great for trying to go for late game scaling but still even in early game it functions pretty strongly if played correctly. I think the two masteries would be stronger on both sides if they weren't next to eachother.
and considering the fact that I'm seeing auto weaving bruisers go for comet, and I see long range poke adcs going for fleet of foot because of a lack of a better option in their tree, all the while not seeing lethal tempo in like... a month outside of when i did it for lulz on aram with nautilus. I think maybe it would be in the best interest of the community to offer this