Shadow Master is a non-playable character in Soulcalibur III that is only fought in a Prepare To Defend Yourself challenge in the Proving Grounds Stage in Tales of Souls, though he only appears if the player follows a certain path.
Possible relationship with Kilik
Kilik has a master named Edge Master. As both Kilik and Shadow Master are fought in the Proving Grounds, Shadow Master could be an evil side of Edge Master or a split personality, or a rival, this is never mentioned in the Soul series. Note that can also be Edge Master as "unknown soul".
- He may be the strongest non-playable character besides Night Terror.
- Some speculate that Shadow Master is actually Edge Master in his Evil Seed-like form. This has never been confirmed or proven false however.