I need a new champion
All the champions I like I own.
My favorite champion is kennen because he stuns like hell and he runs away fast with his E.
Other champions are Ashe (because of the slow and stun), Teemo (because he kills people like hell), zed (because of shuriken and shadows) Wukong (because of decoy ult armor reduction and nimbus strike) and Nocturne (because of ult and dash)
please tell me which champion would fit my playstyle and why

Hecarim. He has speed to attack and get away with and his ult can go in either direction. Good for charging and getting away fast.

Master yi? His ult makes him really fast and I think hes got good burst with alpha strike. Also if you go ap his meditate hes him so much. But hes kind of squishy and cc ignite counters him but hes a good cheap champ.

It looks like you like champions who have high mobility and utility, as well as some "flash" value:

Evelynn is extremely mobile with her speed-boost W shedding slows, and a giant AoE slow/huge damage/shielding ultimate that can break teamfights in her favor (1350ip).

Katarina has the ability to blink to any unit or ward nearby, has good harass and mobility, and deals massive damage. She doesn't have the utility of Kennen and doesn't have skillshots, but you might like her overall playstyle (3150ip).

Twisted Fate isn't mobile, but he has a huge skillshot Q for farming and an on-demand stun card that gives him massive utility. Also, his teleport ultimate lets him be anywhere he needs to be very quickly.

god the OP must be 10 years old. "we" don't decide your favorite champion, you're a grown man "you decide" your favorite champ, for yourself, like a grown man would do.

Shaco is SOOOOO much fun to play, he has a flash on his abilities where his Q lets him flash and become invisible his first attack after being invisible will critically strike, his W spawns jack in the boxes which last for a minute and if an enemy walks by, they are feared and are attacked by the boxes for 5 seconds, his E is a passive-active, passive: when this ability is not om cooldown, Shaco's basic attacks slow targets, active: deals magic damage and slows, his R, summoms a clone of Shaco, can attack, and upon death, explodes dealing magic damage. his passive: his attacks deal 20% more when he hits them from behind. he is a great champion at laning and also at jungling due to his W, he is also maybe THE BEST champion at ganking due to his q