The Mantis King, also known as the MantKing and the GrMantis, is an enemy from Final Fantasy II. It is a relatively rare and hard-hitting enemy that appears east of Mysidia after the events at the Mysidian Tower, along with multiple Killer Mantises. It's also a good training target, as this monster can be dispatched easily with a high-level Blizzard spell and yields a large amount of gil upon defeat. It can also rarely drop Cat Claws, the strongest dagger in the game, long before it can be obtained in the Jade Passage.
Mantises is an order of insects that contains over 2,400 species and about 430 genera in 15 families worldwide in temperate and tropical habitats. Most are in the family Mantidae. A common name, often applied to any species in the order, is "praying mantis" due to the typical "prayer-like" posture with folded fore-limbs, although the eggcorn "preying mantis" is sometimes used in reference to their predatory habits. In Europe and other regions, however, the name "praying mantis" refers to only a single species, Mantis religiosa.