Ice Prince

The Ice Prince, real name Finn Mertens, is an antagonist, former protagonist, of Adventure Time, and a character in the Chaos RP controlled by DarkAlex06. He is an alternate version of Finn, who went insane after putting on the Ice Crown.

He was the former antagonist of the titular arc, but quickly joined sides with the heroes. He currently lives in the snowy mountains with Greg, in an icy castle.

He is voiced by Jeremy Shada.

Early life
The Ice Prince originates from an alternate timeline of the Adventure Time world, where the Mushroom Bomb never went off due to the efforts of a man known as Simon Petrikov. The man used an ancient artifact from the prehistoric ages known as the Ice Crown to freeze the bomb, at the cost of his life, and his skeleton and crown remained in a cave.

The crown, grieving the loss of it's master, froze the entire world, thus causing the next Ice Age, which would go on for 400 years. Upon the end of this era, humanity went back to a medieval state, though still making technological advancements.

Eventually, a boy named Finn Mertens was born, and at some point in his life, he lost his arm, gaining a prosthetic as a replacement.

Adventure Time
One day, Finn is told to go to the market and sell his beloved pet mule in an attempt to pay off his father's debt to the Destiny Gang, a ruthless gang terrorizing the town. Not wanting to sell his mule, Finn eventually falls into the cave holding Simon's skeleton, and an old and wrinkly woman known as Marceline.

Marceline tells him the story of the crown, but Finn fails to believe it, and thus takes it. On the market, the crown is taken by the Destiny Gang, who distract Finn into infiltrating their mansion as they burn the town to the ground. Worried about his family, Finn runs off, only to find his family home burning to the ground.

In a quick moment, Finn puts on the crown and slowly lets the crown corrupt him, freezing the surrounding area, and saving his family. However, his state of mind fails to process the fact that his ice bolts begin to slowly allow the bomb to touch the ground. The bomb eventually explodes.

Afraid, Finn briefly gains control over himself again and saves his family, and protects himself from the bomb's explosion. Realizing that his dog, Jake, has gone missing, he quickly runs to the area where the bomb explodes, and finds only his dog a shell of his former self - Having transformed into the Lich, an ancient monster.

The two briefly duel, but they eventually manage to reach a compromise, although it is unknown when this occurs. Still holding his heroic nature from his past form, the Lich manages to manipulate him into stealing a book known as the Enchiridion and nine gems, which could be used to open a wormhole to other dimensions.

Either after or before this, Finn begins to become known as the Ice Prince, and begins collecting humans in blocks of ice to bring them to the next world.

Ice Prince arc
The Ice Prince is later sent into the Knitterverse, and his crown, panicking, begins to influence the Ice Prince into shooting a powerful winter into the forest. This quickly catches the eye of Thanos, Marisa, Kagerou, Greg, and Shockwave.

When the five end up on the top of the snowy mountains, they find the Ice Prince, who quickly mistakes them for humans and they begin to fight, the Ice Prince attempting to freeze them. Eventually, however, he becomes overwhelmed and hides in a block of ice himself.

Ice Prince, making a quick decision, smashes the ice underneath their feet and they are all thrown downwards into the insides of the mountain, and into Zim's base of operations. An illusion reveals the Ice Prince's backstory to the group, although he completely misses the point and believes that his 'tragic backstory' is the fact that he had a small nose.

The spider robots eventually attack the group, however, due to the fact that Marisa has taken his crown, he is unable to fight back, and is thrown into a seemingly bottomless pit by a spider robot along with Greg, but is quickly saved by the rest. He begins to grow closer to Greg, proclaiming him his new 'Gunther'.

Eventually, when Zim reveals himself and fights the group with a giant mech, the Ice Prince is repeatedly attacked by the mech. Eventually, however, he manages to take the crown back and use it to team up with Greg after he uses a sleeping attack on the rest.

After successfully beating him, the Ice Prince freezes Zim in a block of ice and throws him down a pit. He eventually seemingly becomes friends with Marisa, and takes Greg back to the top of the mountains, where he makes an icy castle for themselves.

Personality
Although the Ice Crown makes anyone who puts it on a powerful, cruel, and mad ice wizard, due to his heroic nature in his past life, the Ice Prince is generally laid-back, easy-going, dense, and more of a slight annoyance than anything, generally harmless.

While he generally just wants friends and companionship, putting on the crown for so long has made him gain a lack of proper social skills, thus causing him to do bad things without knowing about it.

He also has a very limited memory. An example of this would be when he did not remember who Thanos was, despite the fact that he was fighting him a few minutes ago. He also does not remember his past as Finn Mertens, only knowing him because of his 'small nose'.

On his own

 * Ice Crown: The Ice Crown has gifted the Ice Prince many powers and abilities, and thus, his powers are linked to the crown, leaving him defenseless without it.
 * Cryokinesis: Fitting with his name, the Ice Prince is capable of summoning and using ice to his advantage in combat. These abilities are his most useful, and are powerful to boot, capable of creating entire constructs with them.
 * Chionokinesis: Not only is he able to control ice, the Ice Prince is also able to manipulating snow. He can also sense when someone is tampering with the snow he made, although it is unknown if this ability also extends to his ice powers.
 * Hair Propulsion: Using his hair, the Ice Prince is capable of flying for a very long period of time.
 * Astral Vision: Thanks to the ruby jewels on his crown, the Ice Prince can see into higher planes of existence, although he is unable to interact with them and cannot control when this happens and what he sees.
 * Spiritual Awareness: Using his astral vision, the Ice Prince is also capable of looking at the Spirit World.
 * Psychic Shield: The Ice Prince's crown also allows him to not be influenced by mental or psychic attacks, such as hypnosis or the like.
 * Longevity: The Ice Crown is what keeps the Ice Prince young and alive, slowing down his aging process immensely.

Equipment

 * Ice Crown: The Ice Crown is an ancient artifact from the prehistoric ages, created by the wizard Evergreen, using the eyes of the lava dog Magwood. If the Ice Prince is seperated from the crown for a long time, he becomes more 'philosophical' and slowly shifts into an appearance closely resembling his past self.
 * The Enchiridion: His world's version of the Enchiridion, an ancient book with great power, which allowed it to tear open wormholes between dimensions, and potentially travel through time.

Trivia

 * It is unknown how old the Ice Prince is, although he might be around the age of 13.
 * It is also not known how long he has spent corrupted by the crown.
 * On the VS Battles Wiki, the Ice Prince is depicted as being 5-C with the crown, but 9-C without it.