Windwall could be like Ekko's stun

In that you have to invisibly place it a little in advance before it goes off. Yas would have to be rebalanced accordingly but that'd make him way more interesting. Id rather outsmart people than go "oh hai a cc move W!". And we have proof of concept, the delay on Ekko's stun worked the way it was supposed to even if nothing else in his kit did.