ezreal, kennen and kha'zix

Probably Ezreal, he's always been viable.

As for Kha, he's not bad but he's definitely in need of same changes to keep him from being worthless. He's a really strong jungle assassin but he's so incredibly reliant on Isolation range whilst having no tools in his kit to get people into Isolation. So your only chance of doing anything with him if the team bunches up is if your team has a Gragas or something.

All different roles.

Kennen: Viable top/mid. Ezreal: Very solid adc atm. Kha'Zix: Is pretty weak atm, but he's definitely had his shine in the past. I'd expect a buff to him, or a nerf to tanks, would get him going again! Extremely fun to play as well.

Kha. But I am biased XD

ap or ad ez?

After his isolation range, claw evolution, and E-W combo nerfs, I don't think he is in a good spot. He doesn't kill fast enough to be called an assassin and he doesn't fight tanks well enough to be a front-line. His lack of hard CC also places a burden on his team to get a better front-line.

He is also countered really easily by pinks because his kit requires him to stay in combat for an extended period of time to do anything, and a pink easily ruins his attempt to kill the ADC because he takes too damn long.

It's like what happens if you overnerf Kassadin: you do nothing in a game unless so ridiculously ahead that you can buy Gunblade and still outdamage anyone you see.

Kha'zix is fun as hell, but he takes a bit to learn his limits. Once you figure that out, he's awesome.

Kennen is in a weird spot. He struggles against tanks, but his teamfight is incredible.

Haven't played much Ezreal, but I think he's better in mid than as an adc.

Kha'Zix has amazing level 2 cheese against enemy junglers. Terrible teamfight though. Kennen is hidden OP: a lane bully that scales into late game as well. Ezreal is pretty amazing actually.