what does it take

to stop darius decimate spin iknow theres a windup animation which can be cc'd but the swing animation cant, not even stun idk if knock up stun would cancel the animation and so the attack? i tested riven vs darius ai but the cast animation/time of riven is way too slow on the third q endso there are 2 stages of the decimate spin, what does it take?

Shallowillow