Sion Bug
It's been in the game so long it's most likely intentional but It's not in the tool tip and I see no reason for it to be in Sion's Kit. 100% replicable, just tap his q with quick cast on and it won't damage enemies far away Even if it is intentional it makes the already problematic hitbox way worse. Often times you won't hit a creep point blank, but that's obviously harder to replicate.