Originally Posted by Stray Logos
Kha is NOT squishy, and even if he was, he has 2 escape abilities, one of which refreshes on kills/assists. Blitzcrank, Olaf, and Ez ARE OP. They are too good at what they do compared to other champions in their class. This combined with their safety (Ez), or broken mechanics (olaf's ult, blitz's entire kit) cause them to enter the pool of highly banned champions.
I do like how I provide numbers showing how his W does far too much for its mana cost, yet people still simply say things like "oh you have never played him" or "he's super squishy so its ok".
Kha IS squishy, it's not even that I'm saying you've never played him, you CLEARLY NEVER even spent the time to learn a bit about this champion.
What do you think a ONE second stealth will do for you if you're caught in the middle of the team, and WHAT IF you don't get a kill so your leap doesn't refresh
And I don't see why you take pick/ban rate as a mean for a champion being OP, How about looking at the win rates, Kha'Zix has less than 50% win rate while Elise, Twitch and Singed ( 3 out of the many champions you've played in ranked) have more than 50%
What that means is that playing the champion won't even win you half the game, you can put in all your efforts and will still have less than 50% chance of winning the game with Kha'Zix.
The number you provided are just numbers on paper, numbers that assume the enemy bought no armor or hp items, the cost of his W is high and for that he deserves the high damage. Kha'Zix is a mana hungry assassin unlike akali and katarina, and therefore it's a give and take that he gets high damage output