Unpopular opinion, windwall is not the most toxic ability in this game
And by toxic I mean unfun to play against. Just clearing that up. Let me also point out that you can literally walk right through this ability and continue to attack him. Anyways, we have abilities that literally make you invincible. Even cc'ing Tryndamere won't stop him. He'll just continue to have his way with you and there's NOTHING you can do about it. Fizz is literally untouchable like every 4 seconds (MAX CDR) with playful. And it's not just playful that's toxic. This applies to any ability that makes you untargetable (Shaco, Zed ult, Kayn ult, etc). Veigar cage and Trundle pillar exist. Let's also not forget that Veigar can just one shot whoever the fck he wants. Oh, and let's not forget all the stealth abilities that exist. Teemo's entire kit is toxic and has no place in this game, but it's not just him who's unhealthy. He's just one of the worst. Anyways, you get the point. Windwall is actually one of the least toxic abilities in this game compared to all the other sht that exists. You're not forced to fight him when it's up, and if you REALLY wanna keep fighting him while it's up no one's stopping you from walking through it.