Plesiomon

Plesiomon is a Dragon Digimon. It is a previously imaginary Digimon discovered within the computer of a  research institute. It was a Digimon that had already been rumored among researchers. Although it rarely makes an appearance, it seems to show up when visibility is reduced due to being shrouded in fog. It is a mysterious being whose appearance gives the impression of being polished to shine white.

Attacks
 * Sorrow Blue : Sings with a high-pitched, crystal-clear voice, wrapping the listener in sorrow and making them lose their fighting spirit.
 * Shaking Pulse : Attacks with a high frequency sound wave unleashed at maximum intensity.
 * Fin Attack: Slaps the enemy with its fins.
 * Plesiomon Tail: Spins and attacks the enemy with its tail.
 * Preciomon Attack: Leaps into the air and bodyslams the enemy.

Design
Some media, such as Digimon World 2, have Plesiomon's forehead the same color as the rest of its head, instead of it being black.

Etymologies
Official romanization given by the Digimon Reference Book and used in most of the franchise.
 * Plesiomon (プレシオモン)

Name used the American English version of Digimon World 2 and some other American English media.
 * Preciomon
 * Anglizication of the Japanese name. Possibly from "precious".

Digimon Tamers
A Plesiomon is among the Mega Digimon that show up to help the fight the D-Reaper.

Digimon World 2
Preciomon digivolves from Scorpiomon and Zudomon (0-8 DP). Its signature move is Sad Water Blast.

Digimon World 3
Preciomon is a collectable blue card with 35/35 stats.

Digimon World DS
Plesiomon digivolves from Whamon. Plesiomon is also found at the Under Sea Drive.

Digimon World Dawn and Dusk
Preciomon is #331, and is a Mega-level, HPtype-class, Aquan-species Digimon with a resistance to the Water element and weakness to the Steel. Its basic stats are 298 HP, 331 MP, 143 Attack, 147 Defense, 149 Spirit, 116 Speed, and 68 Aptitude. It possesses the Heroic Guard, Mist Coat, LuckyMedal4, and Skill Master traits.

Preciomon digivolves from Brachiomon. In order to digivolve to Preciomon, your Digimon must be at least level 47, with 17,500 Aquan experience and 290 attack.

Preciomon can also DNA digivolve from any two of Zudomon, Tylomon, and AeroVeedramon, if the base Digimon is at least level 42, with 14,000 Aquan experience and 240 spirit.

Preciomon can be hatched from the WA Half Egg.

Digimon Story: Lost Evolution
Plesiomon is #227, and is a Mega-level, MP-type, Dragon-species Digimon with a resistance to the Water and Thunder elements and a weakness to the Fire element. It possesses the Health 200%, Escaping is Winning, Master of Saving, and Skill Master traits, and has the special skill Dive.

It dwells in the Angler Tunnel.

Plesiomon digivolves from Brachiomon and can digivolve into Aegisdramon. In order to digivolve or degenerate into Plesiomon, your Digimon must be at least level 38 with 180 defense and 160 speed.

Digimon Story: Super Xros Wars Blue and Red
Plesiomon DigiFuses to Aegisdramon with MegaSeadramon and Eaglemon.

Digimon Story: Cyber Sleuth
Plesiomon is a Water Data Type, Mega level Digimon and uses 18 memory. It digivolves from ShogunGekomon, Whamon, MegaSeadramon, and Zudomon. Its special attack is Sorrow Blue and its support skill is Deep Savers, which gives all attacks a 10% chance of causing sleep.

Digimon Story: Cyber Sleuth - Hacker's Memory
Plesiomon is #279 and is a Water Data Type, Mega level Digimon and uses 18 memory. It digivolves from ShogunGekomon, Whamon, MegaSeadramon, and Zudomon. Its special attack is Sorrow Blue and its support skill is Deep Savers, which gives all attacks a 10% chance of causing sleep.

Digimon World Championship
Preciomon digivolves from Whamon.

Digimon Battle
Plesiomon is a card digivolution, digivolving from Zudomon.

Digimon Heroes!
Plesiomon digivolves from Vikemon.

Digimon Links
Plesiomon digivolves from ShogunGekomon, Whamon, MegaSeadramon, and Zudomon.

Digimon ReArise
Plesiomon may digivolve from ShogunGekomon.

Digimon Masters
Plesiomon is a Burst Mode Digimon that digivolves from the Mega version of Vikemon and can digivolve to Aegisdramon.

Digimon Survive
A Plesiomon that worked for joins the other remaining minions in looking for  in an attempt to kill him for turning on Piedmon. It and the other various minions look for him but end up finding the children instead. Remembering that they helped Garurumon kill Piedmon they attack the children but end up losing, so retreat.

Plesiomon evolves from Zudomon and Mermaimon. If Takuma Momozuka is able to befriend a Plesiomon and asks it for an item, it will give him a Fine Anti-Water Crystal.