Armadeevil

Armadeevil appeared in 2012 TV series called Power Rangers Super Samurai. Armadeevil is a rat/shell-themed Nighlok whose existence was unknown to Master Xandred before he came to the ship and offered his services. He merrily went on a rampage, and the Samurai Rangers were unable to cause him any damage due to his armor plating on his shell. They were only granted a chance to think of another strategy by his need to rehydrate. When he returned they were able to weaken his shell, first by tricking him into crashing into a rock wall, then by superheating it and quickly dousing it with cold water afterward to induce thermal shock.

Afterwards the Blue Super Samurai Ranger was able to end Armadevil's first life. After Armadeevil withstood the Samurai Strike, the rangers repeated their strategy against his giant size, using the Beetle Blaster, Swordfish Fencer, and Tiger Drill Megazord configurations but to no avail. Even the Claw Armor Megazord's double strike was unable to finish the fight, forcing the Rangers to resort to the Samurai Battle Cannon, which finally did the trick and ended him.