In one story, this deity 
In one story, this deity supported Mount Mandarachala during the churning of the ocean, and this deity holds a conch, lotus, mace, and a discus. One form of this god, Kalki, will end the Kali Yuga era, and he tricked King Bali into allowing him to take three large steps after becoming the dwarf Vamana. Other forms of this deity include Parushurama and a prince that defeated an evil king on Lanka, and his consort is the goddess Lakshmi. For 10 points, name this preserver deity of the Hindu Trimurti who took the form of ten avatars, the eighth of whom was Krishna.
In one story, this deity supported Mount Mandarachala during the churning of the ocean, and this deity holds a conch, lotus, mace, and a discus.
Vishnu