Are we talking silver here?!
And for kai´sa´s passive, you need 4 attacks to stack it and a 5th to activate it.
CAUSTIC WOUNDS: Kai'Sa's basic attacks, Void Seeker Void Seeker, and nearby allies' Stun icon immobilizing effects mark enemies with Plasma for 4 seconds, stacking up to 4 times. Kai'Sa's attacks can then rupture enemies with 4 Plasma, consuming them to deal 15% (+ 2.5% per 100 AP) of the target's missing health magic damage, capped at 400 against monsters.'
And the sivir comparison? How is she overstated? They are damn different so why even bother comparing them?
All you succeed in gaining from this comparison is the fact that you´ve compared an apple to an orange, quite pointless indeed.
All marksmen can use press the attack if they want to, those who dont simply gain more from something else at all times.¨
Is Ashe broken? She can easily use all 3 keystones too, as can Tristana and Xayah.
Rageblade itself is broken, and then there is the issue of she actually being able to use every single stat on it.
....And which damn marksman has any sustain by default?
Everyone uses fleet footwork to help sustain or kite, stating the obvious well enough here...........hells it actually mandatory when the enemy side is rich on poke in lane.
And you cant use the doran´s shield start if you want that precious triple evolve you mentioned-
Most damage? LOL.
She does not pack anywhere near as much damage as a kog or a Vayne, or even a tristana possibly, and this on a consistent basis.
If talking short bursts then Twitch is the king of all, his R+hurricane in a critbuild+botrk+armor pen has no equal.
What she does, unlike Kog, is that she isnt reliant on 4 others coordinating perfectly to help her survive, nor is she quite as weak as Vayne/twitch early.
She is more flexible in her build than Tristana and can just go AP if she sees the enemy tank stack armor thus bypassing the worst period unlike say Tristana who at the same point would do minimal damage to the tank due to lacking AD/Crit and armor pen.....lifesteal too to not die.
She lacks utility compared to Ashe or Sivir but she got more damage to compensate.
She is literally the perfect mix of attributes more than anything, ontop of being quite free in her build paths.
She is never really too weak while scaling well enough, she isnt helpless if dived on post 6, and due to rageblade she can build to be good against both tanks and squishies as much as needed.
So yeah,......i seriously think she is more of a case of being everything a marksman player could want rather than OP.
Similarly how Orianna is called the perfect mage in the pro scene, having a perfect balance between damage, utility and safety for her position making her fit into basically any team as needed.