A Shadow Walker player has a Shadow Soul already on the board. The player uses the Soul Bound skill to place his Shadow Soul again. When the existing Shadow Soul is removed, does it count as being "discarded" for the purposes of triggering the Shadow Walker's Endless Void skill?
Soul Bound: Use this card when you perform an attack that is not a miss. Place a Shadow Soul in any space adjacent to the target. Only 1 Shadow Soul can be on the map at any time.
Endless Void: Each time a Shadow Soul is discarded due to your class skills, you recover 1(heart) and 1(fatigue).