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One of them holds a mace that represents knowledge; that one also bore a mountain on his back on which the gods rode. One of them defeated the demon Goldeneye to recover the Earth from the bottom of the cosmic ocean, while another avoided a boon given to the father of a devotee by jumping out of a pillar. The axe-wielding one will train the one that will appear riding a winged horse to end the Kali Yuga, and they include a fish, a tortoise, and a boar. For 10 points, give the name for this group of figures including Matsya, Kurma, Varaha, Parashurama, Krishna, and Buddha, the earthly representations of a certain Hindu preserver god.Â  
One of them holds a mace that represents knowledge; that one also bore a mountain on his back on which the gods rode.
avatars of Vishnu [prompt on "incarnations" and the like] Â  