Talk:Kennen/@comment-28381378-20160505104112/@comment-26231232-20160505211035

I think he became a huge midgame teamfighting mage. Zhonya's is much cheaper now, letting him reach that powerspike much earlier, and his ult buffs are HUGE. He becomes a huge teamfighting menace with only two items (Zhonya's and Abyssal), and I think from then on he can build a bit like Rumble as an AP bruiser (Rylai's and Liandry's, Protobelt is also an option). Void Staff is his ultimate damage amplifier item.

If you like him as a burst mage, then that build is still viable, of course. His AP ratios weren't nerfed, quite the opposite, his ultimate got buffed from 1.2AP ratio to 1.5AP, and the rest was untouched. The nerfs to Zhonya's and Abyssal hurt a bit, but overall full AP Kennen should be as strong as ever.