AncientMermaimon

AncientMermaimon is one of the Ten Legendary Warriors, who saved the Ancient Digital World: this Digimon bears the attribute of 'Water'. One of the first Mega-leveled beings to have existed since ancient times, it is the protector of the Net Ocean, one of many Digimon birthplaces. It rules over every inch of the vast Net Ocean, and it can manipulate water as if they were hands and feet, creating currents and tsunamis. It's been rumored, but not confirmed, that AncientMermaimon's anger can sink islands and continents with just one touch. Many Aquatic type Digimon consider AncientMermaimon to be their goddess, and have thus inherited her abilities. Its special attacks are "Crystal Billow", which fires out super-hard crystals like a machine gun, and "Great Maelstrom", which generates a huge maelstrom that engulfs everything in its path in water.

Abilities

 * Great Maelstrom: Generates a gigantic maelstrom which swallows everything in the water.
 * Crystal Billow: Crystallizes water into supersolids, then fires them off in the manner of a machine gun.

Superpowers

 * Water Manipulation - The user can create, shape and manipulate water, inorganic compound with liquid, gas (steam, water vapor), and solid (ice) states, including changing them from one state to other.
 * Tidal Wave Generation - The user can call forth huge water waves to crash down at their targets, washing everything away in a powerful torrent.
 * Ocean Communication - The user can communicate with the ocean, including animals, plants, the water, weather, etc., either telepathically, by speaking verbally, or by touching it physically. Oceans can tell the user of what happened or what is happening, help them to track someone at long distance away, etc.

From:-
Anyone + Human Spirit of Water and Beast Spirit of Water

To:-

 * MagnaGarurumon (with AncientGarurumon + AncientBeetlemon + AncientSphinxmon+ AncientWisemon)
 * Susanoomon