Legion is a colony of an extraterrestrial species of Silicon based organisms from the movie Gamera 2: Adventure of Legion. These creatures appear as the main antagonist of the film and were the second antagonist appear in the Gamera Trilogy. The symbiotic legion as noted in the film are a silicon based extraterrestrial life form, Legion exterior greatly resemble that of an insect, especially that of a Rhinoceros Beetle. The legion do not actually have muscle. Instead, they are able to move through pressurized gas that passes through their seemingly hollow endoskeleton. Their reproduction is unknown except for the fact that they spread through an enormous pod that they fuel with oxygen to ignite a massive explosion to launch their species throughout the galaxy. The queen leads this operation. On her abdominal region, she sports multiple egg-cases which house symbiotic Legion soldiers which she can dispatch at will to do her bidding. If these workers are not enough to protect their pod, she will emerge to guard its location.

Classification: Kaiju

Powers and Abilities: Superhuman Physical Characteristic, flight, energy projection, forcefield creation, summoning(Can summon hundreds of legions soldiers from her abdomen)

Attack Potency: Mountain level(Could penetrate Gamera shell with her normal attacks)|Large Mountain level(Destroyed the entirely of Sendai, even with Gamera attempting to block the explosion)

Speed: Unknown on ground, Superhuman tunneling speed with Transonic flight speed

Lifting Strength: Class 100+

Striking Strength: at least Multi-City Block Class

Durability: At large Mountain level, likely higher(Withstood Gamera Mana Beam for several seconds before dying)

Stamina: Unknown

Range: Extended melee range

Standard Equipment: Hundreds of legion soldiers,Legion Flower

Intelligence: Average for a kaiju. The Queen legion directs the soldiers actions, however the soldiers individual intelligence is quite low and they can be distracted by sources of silicon. 

Weakness: Her plasma beam is difficult to aim even at close range as the light emitted from its hinders Legion's eyesight. Her soldiers are also attracted to sources of silicon.

Notable Attacks and Techniques: 

Microwave Shell: Legion can create a force field from her nasal horn to counter Gamera plasma fireballs.

Plasma Beam: Legion can fire a plasma beam from her nasal horn.

Butte Legion: If her nasal horn is cut off, legion will produce high-temperatures tendrils that can freely cut through her opponent.

Legion Swarm: Legion can summon hundreds of legion soldiers from her abdomen.

Legion Flower: The legion are invaders from space and to travel they form a large flower that can launch them from planet to planet, allowing them to colonize various worlds. The legion flower is formed from large quantities of silicon and produces large amounts of oxygen to allow for great launching power, resulting in a massive explosion. In the explosion, the entire city of Sendai was consumed, leaving nothing but a massive crater in the ground and the charred body of Gamera, who nearly died.