How to fixe Twitch Kog and Tristana
so those 3 champions have a massive popularity+win rate+ban rate in high elo
i just wanted to share an opinion on how one can fixe them
Let's start with this dude. Kog's problem is how through itemization (frozen mallet, ninja tabi, GA, Maw, witsend) he can become a 710 range bruiser that draintank(bork,guinsoo,runnan,ardent,maw) in AOE and shred everything so fast like a marksman. His kit also doesn't allow for counterplay as most of his power are in his Q passive and W rightclicks+on hit effects given by items.
In my opinion riot should shift a lot of power from kog's rightclicks to his abilities
Base stats: -base attack speed increased from 0.665 to 0.7 -attack speed per level reduced from 2.65 to 1.8
goal of those changes: reducing kog's damage if he goes bruiser, and forces him to buy more attack speed than 2 or 3 items base attack speed increased to reward kog for buying more attack speed
same treatment than tank 
Caustic Spittle:- no longer passively gives +15 / 20 / 25 / 30 / 35% bonus attack speed -active now also gives kog + 15/25/25/30/35% attack speed for 4 seconds if he hits a champion
Void Ooze:-mana cost reduced from 80/90/100/110/120 to 80/85/90/95/100 -slow rescalled to 40/43/46/49/52%
Living Artillery: -range increased from 1200/1500/1800 to 1400/1600/2000 -now has an area indicator
goal of the changes: shift kog's damage from rightclicking with Q passive to spells with counterplay. Dodging Q will now reduce kog's damage even more. Kog's Q passive and W active are way too strong that some kog players do not skill E at all. Which is why his E should be improved, it costs too much mana and the slow in initial ranks is weak. Finally, his ult range is increased to improve his Artillery theme
is essentially a better assassin while also being ranged. Twitch does not leave any counterplay to his enemies while also not leaving much time to react
Ambush: detection radius increased to 575 to be leave a little time to react before twitch hits you twitch can now use Q again to put an end to Ambush
Spray and pray: - can no longer be used while stealthed -now requieres twitch to wait 0.75 second after ambush ends to be aviable
way too safe in early game, leaving a free pass for the rest of the game as a hypercarry
Rocket jump: mana cost increased from 60 at all ranks to 100 at all ranks
note: would be the same mana cost than
walkyrie, which seems fair to me because corki W doesn't slow in aoe (unless package) and has less range (something like 600 while tristana is a 800 range jump)
hehe

in that you show up only for them to immediately be under tower basically wasting your time
Edit:
too
Just be back on top like they have in past seasons.