Use Flash to close the gap, AA to build stacks, Q for the third stack and damage, W to trigger the stun.
Kennen Wild Rift Expert Guide
§ 07b — Advanced MechanicsKennen: combos & tips Wild Rift
Surprise Flash into the enemy group, R for the Maelstrom AoE, W for the stuns, Zhonya’s to survive.
Lightning Rush to close the gap quickly, stack as many Marks as possible with auto-attacks + Q, W to stun, R for sustained DPS.
Q for 2 Marks from a distance, E to close the gap and apply the 3rd, W for the stun.
FAQ
How should I play Kennen in Wild Rift?
Kennen is generally played as Top. The first objective is to short trades, smart backs to complement liandry; matchup boots. Its biggest edge comes from devastating zone wombo-combo with r + stasis enchant.
When is Kennen strongest?
Kennen takes over in mid game: if ahead, force herald/dragon and wombo with your team; if not, defend under tower and look for 5v5.
How do I punish Kennen?
Kennen can be punished when relies heavily on r to carry weight in teamfighting. A practical answer listed here is: Bruisers AD with tenacity gain the upper hand if they cut off his poke.