Yasuo w blocking his q.

Slowed it down to see better, but I cast w to cancel my q animation and block the enemy Yasuo's q, and ended up hitting my q into my w at the same time (if not a fraction before) as the enemy q, and mine disappeared.

You can see something on my side of the wall proccing into the wall ((my q)) and then the enemies q proccing into the wall around 8-9 seconds in, and then proceed to stop and contemplate existence after witnessing that happen. Riot...[sg-lux-2]