Orianna W bug
Orianna's W seems to damage enemies before the ball moves to the target position if W is cast immediately after Q.
I know there used to be a lockout of her other abilities after casting Q or W, but those lockouts seem to be much shorter now. I assumed W was supposed to buffer and resolve after Q resolves, but that doesn't seem to be the case.
In the first picture, you can clearly see the Dissonance animation playing before the ball reaches the destination; the white circle is actually when the damage happens but in this you can see the ripples as well. In the second picture, you can easily see W on cooldown and the minions taking damage from the ability before the ball lands.