The giant in Norse mythology known for his great strength and conflict with the gods is Ymir. He is considered the primordial being from whom the world was created, embodying chaos and the raw elements of nature. Ymir's death led to the formation of the Earth, highlighting the theme of creation from destruction. His conflicts with the gods, particularly Odin and his brothers, underscore the ongoing struggle between order and chaos in Norse narratives. Ymir symbolizes the primal forces that shape creation and existence, marking the beginning of time.