He comes to earth because of prayers given to the Amitabha Buddha to save the world from four evil kings.
At one point, this character morphs into a goldfish, gets swallowed by one of his enemies, morphs again into a water wheel, then churns his stomach endlessly until his enemy is defeated. His enemies include the Black Tent King, Yellow Tent King, and White Tent King. His second-favorite concubine, Maisa, is kidnapped by the child-eater Lutzang, which leads him to war with his kingdom, called the kingdom to the North,. He comes to earth because of prayers given to the Amitabha Buddha to save the world from four evil kings. This son of the demon-slayer Tuiba Gawa, wages a war between Hor from his kingdom of Ling. The namesake of a (*) one-million line epic poem, for 10 points, name this titular king of a poem that is often championed as the national epic of Tibet. [Ike]
At one point, this character morphs into a goldfish, gets swallowed by one of his enemies, morphs again into a water wheel, then churns his stomach endlessly until his enemy is defeated.
King {Gesar}