Illaoi's empowered attack (W) can be canceled even if it was written in patch notes 7.23 that it cannot be("Empowered attack can no longer be canceled."). Possibly any knockup cancels it: Sion's Q, Aatrox's Q and W. Steps:
DerMangoJoghurt1 votesI think that means Illaoi can't cancel the attack by moving before the animation is finished. She can still be interrupted by enemies.
Khristophoros1 votes"canceling" means specifically the player of the champion canceled it.
Any type of non-instant mobility can be interrupted by knockups/displacement and her W does have that small leap so it's unsurprising that it can be interrupted. Every dash/leap I can think of will lose its effects if it is interrupted like for example Xin's E won't deal damage or slow if you stop his dash.
AnataBakka1 votesyou're right about it cancelling when illaoi dashes. However it doesn't cancel if illaoi attacks from close range so
means specifically the player of the champion canceled it.
this is false
Khristophoros1 votesThe term "cancel" is not the same as the term "interrupt". "cancel" means that the player canceled it. "interrupt" means another player stopped the action by doing something that is capable of stopping it (in this case displacement interrupts movement)
AnataBakka1 votesooh, i see, i misunderstood your point