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How did Baal defeat the sea god Yamm in the Baal cycle?

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In the Baal cycle, the conflict between Baal and the sea god Yamm arises after Yamm demands that the gods surrender Baal to serve as his bond servant. While the chief god El initially agrees to this demand, Baal refuses to submit and instead engages Yamm in battle to seize divine kingship.21

To secure victory, Baal is equipped with two special magical weapons crafted by Kothar, the god of arts and crafts. Following a furious fight, Baal successfully slays Yamm, thereby establishing his own authority and kingship over the gods.231