Phalanx

Phalanx is a colossus that appears in Shadow of the Colossus, being the thirteenth colossus. Being 550 to 600 feet long and weighing over 1,000 tons(on the ground), he is the largest colossus in the game and is located in a desert. He is the most unaggressive colossus in the game. His name means "The Sky Serpent".