User blog comment:The Lost Marbles/Tessik, the Raving Thunderbolt/@comment-7709681-20140808010953/@comment-25193301-20140808013551

I've never heard anyone call Kennen a great champion before, to be honest. It would seem weird to have both lightning champions with similar E's, though.

Maybe, then, have her E crank her Movement Speed and Attack Speed up massively, with both bonuses decaying over the duration, as well as applying a small amount of splash magic damage to her AAs during the duration?

And then her ult can be what the current R2 is, but with some cooldown adjustment. It can probably have a lower cooldown than since it doesn't grant bonus Armor/MR and Tessik can't build tanky as easily as Xin can.