Bug report
[GAMEPLAY] Sion's Decimating Smash follows Zed, instead of in the direction of the mouse cursor at first cast.
Zed uses ultimate, leaves a shadow in place, close range. Sion uses Decimating Smash. Zed uses R again to return to shadow (which is opposite of Sion's channeling Decimating Smash. Yet, it follows Zed, even when he uses W ability.