If Tusk dies and cast Snowball while in Wraith form, but DO NOT launch it and dies, on respawn fake Snowball will roll to the target.

This snowball doesn't contain any unit nor can be selected. It doesnt harm anything and follows the target until reaches it, dying at hit.

Purely visual glitch. Tusk have to die while Snowball stands still. if death happens when already rolling nothing unusual happens.