It is a demon with a dull grey complexion wearing sparse armour. As their name implies, it is a creature of cold and is utterly impervious to ice attacks.
Hypothermions are Demons with the appearance of muscular men with dark grey skin, a large pair of wings on their backs, and a curved pair of horns on their heads. They have spikes jutting from their shoulders, a long tail, and a slightly hunched over stance. The demons have long pointed ears and have a third eye on their forehead, with all three of their eyes being solid yellow and having a menacing appearance. What little clothing they wear consists of bands on their wrists and ankles, straps around their midsection and left shoulders, and a purple codpiece and an armour plate on the left side of their chests. They have a particular affinity for both ice magic and instant death spells, making them vexing opponents if faced in groups. Thankfully, the Hypothermions are hampered by the limited amount of MP they possess.
Hypothermions began appearing in Version 3.5 of the game and are much more powerful this time around, being able to cast Kacrackle and Kathwack. They have also gained the ability to belch out scorching flames and cast Multiheal, as well.
Part of the underworld's upper crust, these chilling creatures operate as shady string-pullers, particularly skilled at lurking in the shadows in service to their master
Hypothermion appears as a C-rank MP of the Demon family during the second part of the limited True Dragon Quest V event. It can be scouted from Chapter 3, Episode 3: Father and Son of the event quests and it can be fully awakened by repeating the quest at any difficulty. The Hypothermion can participate in Purrcy's Battle Road as a party member.