One of the Ten Legendary Warriors that saved the Ancient Digital World, possessing the attribute of Ice. A Mega that existed in the far-distant past, AncientMegatheriummon is said to possess both the strength and bravery necessary to adapt to midwinter soil in extremely low temperatures. It can stop the atomic activity of all things with absolute zero attacks, and it destroys even the eternally-frozen giant icebergs with ease. The abilities of AncientMegatheriummon would later be inherited by Mammal Digimon, Ice-Snow Digimon, and others. Its special move Freezing Blizzard is an absolute zero super-blizzard, and Great Snowplow is a super-charge that destroys even massive icebergs.