Dragon God from the Sumerian creation myth. God of the fresh
water. He and his mate, Ti'amat (Dragon Goddess of fresh water) gave
birth to the gods. Their children were noisy and chaotic, and Apsu
plotted with his vizier to kill the children. One of the children,
Enki, God of Magic, cast a spell on Apsu and killed him. Ti'amat
was enraged, went to battle against her own children. Eventually, she was
drawn in to single combat with Marduk, child of Enki and his wife, Damkina.
Marduk slays Ti'amat, and creates the firmament from her body.
Also, the name of my (correction, our
) Black Arowana