Master Of Shadows is the 12th rank in Ninja Legends. It costs 250Qi coins and gives the player a 100x Ninjitsu rank multiplier. It costs 162.5Qi coins if you own the Masterful Wrath Element and the Blazing Entity Element. Equipping this rank will emit a purple aura and purple flames around the player's torso, hands and legs, and purple lightning particles around the player's torso.
The Immortal Assassin rank can be unlocked upon purchasing this rank.