Yamata no Orochi is a titanic dragon/serpent of Japanese mythology. It is first mentioned as having existed in the fictional Marvel universe, in issue #2 of the 1st volume of the Black Axe comic book series. It has not yet appeared in any comic book so far, though it has been mentioned in a few.
Background[]
Yamata no Orochi, is the offspring of the Elder God Set. It was a colossal serpentine dragon with eight heads and eight tails, whose length extended across multiple mountains. The Japanese god Susa-No-O-Izumo slayed the dragon, and afterwards found within its belly, the perfect sword, the Grasscutter.