The Chaos Sensei is the 18th rank in Ninja Legends. It costs 5N coins and gives the player a x1.2k (1,200) ninjitsu multiplier. It costs 3.25N coins if you own the Masterful Wrath Element and the Blazing Entity Element. Equipping this rank will emit an aura and flames with a variety of colors around the player's torso, hands and legs, and lightning particles with a variety of colors around the player's torso, similarly to the Dragon Master's aura.
The Chaos Legend rank can be unlocked upon purchasing this rank.