Kanzaki

Armadeevil is a rat-faced Nighlok with a hard snail-like shell. His existence was unknown to Master Xandred before he came to the ship and offered his services. He merrily goes on a rampage, and the Samurai Rangers are unable to cause him any damage due to his armor plating. They are only granted a reprieve by his need to rehydrate. When he returns, they are able to weaken his shell by first tricking him into crashing into a rock wall and then by super-heating it and quickly dousing it with  cold water  afterward to induce thermal  shock . Armadeevil is then destroyed by the Blue Ranger/Super Samurai Mode's Super Spin Sword Slash Finsher.