[GAMEPLAY] Mordekaiser Harvesters of Sorrow (W) does not grant assist

On Mordekaiser, Casting Harvesters of Sorrow (W) on friendly champion does not grants assist even it gives movement speed toward mordekaiser.

Steps Mordekaiser casts W on Friendly Friendly walk towards Mordekaiser making use of the movement speed without being too close triggering damaging metal swirls Friendly kill an enemy champion Observe Mordekaiser does not grant assist even when friendly champion made use of the movement speed