Scratch Lunin

Overview
Scratch Lunin is an interdimensional demon specifically created by the Multiverse to protect it from powerful threats such as interdimensional monsters and tears in between universes. He is along one of the most powerful creatures in existence, almost stronger then Bill Cipher himself.

Appearance
He is a demon clad in crimson red armor, which is covered in many spikes and sharp points. He has glasses with a cracked lens, and most of his left side is slightly burnt. He also has a scar on his left eye.

Personality
Scratch is a mostly quiet and serious individual, as is important for his endless amount of interdimensional tasks he completes. He is somewhat calm and laid back when not in battle or with his friends, and quite hostile to his opponents. He tends to lash out at others when under stress, causing his anger to overtake his reasoning; which can cause him to say or do things he might regret later on. Generally quite mysterious and patient otherwise, preferring to watch from the shadows before striking.

Pyrokinesis
Scratch has incredible control over fire, being able to manipulate it at a universal level. He can plunge an entire dimension into unholy flame, though he prefers not to cause such damage unless otherwise necessary.

Energy Manipulation
Scratch can manipulate energy, as well as create different forms of it. Though he cannot generate truly infinite amounts of energy unless influenced by a powerful relic.

It is noted that this attack, as well as certain others, can pretty quickly tire Scratch out if excessively used.

Electricity Manipulation
Scratch can manipulate electricity at an exceedingly high level, as it is present in his main attacks. He can create many forms of electrical attacks, from balls of pure electricity (electrospheres) to large clouds of high-voltage lightning (zetabolts).

Laser Manipulation
Scratch can create and manipulate beams of pure energy, which can disintegrate anything in its path. He can also change the power of the laser, from a small sting to a planet-sized beam of mass destruction.

Teleportation
Scratch has the ability to instantaneously move to any location in the Multiverse, and can teleport matter/energy from one location to another without physical contact.

Supernatural Intelligence
Scratch Lunin has a vast level of intelligence, almost as much as Reds. He doesn't know everything there is to know however, but can learn a specific topic surprisingly quickly.

Lightning Fast Thinking / Reaction Time
Scratch's quick thinking skills and lightning fast reaction time allow him to formulate plans incredibly quick, as well as analyze and avoid any incoming attacks from his adversaries in a matter of nanoseconds; in other words, really, really fast.

Telepathy
Scratch can mentally transmit information to any living being in existence that has a mind. He can also manipulate dreams, thoughts, mindsets, and brain functions of others, if their mind isn't powerful enough to withstand it.

Dimensional Manipulation
Scratch can create and destroy almost any dimension that is within the Multiverse, such as also being able to manipulate it's contents. This power is quite difficult for Scratch to use though, and excessive use of this power would require unfathomable amounts of energy, even more then Scratch can manage without the Unishard.

History
Scratch was created in the early Multiverse, which was only a few hundred million years old. Over time, more and more dimensions formed, each with their own characteristics, some with their own physical laws. Creatures of all shapes and sizes evolved in each and every dimension, some more nightmare-ish then others.

Some become smart enough to question their power in the Multiverse. One in particular, lived in the very second dimension to ever be formed (Aptly named "The Second Dimension").

This little triangle had a thirst for power, an ever-growing hunger for Multiversal domination. With the power he already had, he plunged his world into an unholy flame out of lust for more power. He took over the first dimension created, The Nightmare Realm, where beings lost in the Multiverse ended up, and living nightmares called their home.

At an unknown time, he decided to give himself a mortal name, to allow better communication with mortal beings. This name was “Bill Cipher”. At around the same time, the Multiverse sensed Cipher’s growing power, and devised a solution to stop him. Over a few thousand years, atom by atom, a being with powers that matched Bill was created. The being was Scratch Lunin.

Scratch had one mission: keep the Multiverse safe at all costs. Protect it from creatures powerful enough to threaten it. He attempted to complete said mission. He watched Bill from a distance, learning his background, his mysteries, his weaknesses. When the time was right, he prepared to attack.

Unfortunately, he found out defeating Bill wasn't easy with brute force alone, as he is much tougher against simple straightforward attacks. They battled many times, Scratch closer and closer to winning each time.

It wasn't until much later when he learned that Cipher's main weaknesses are in the form of mystical energy, such as spells and mind erasure. At that point, he had already been defeated once before, by surprisingly, a mortal. Unfortunately, he managed to literally cheat death by invoking the name of the Axolotl, a mystical being with powers that could theoretically match Bill.

Now that he has returned, Scratch began spying on him again. As it turns out, a powerful relic appeared in the Nightmare Realm, given to Cipher by the Axolotl. This relic is known as the Unishard, a shard of the early Multiverse that holds enough power to keep the Realm together until the end of time. But should the Unishard shatter, the entire Reality Half would be completely destroyed.

While Cipher knows this, he has gained a bit of common sense after cheating death itself. He will keep the relic safe at all costs, since it's the only thing keeping the Nightmare Realm together. He is still a megalomaniac, but now he knows what forces to not tamper with. Now that his wishes are fulfilled, Scratch no longer needs to stop him now, since he is no longer a threat to the Multiverse.

His mission is finally complete.

At least for now.

Interactions with Gigio's Creator
At the very beginning of the series, Gigio's creator, Giovanni, decides to animate out of boredom. When they draw and convert a cobalt blue stick figure into a symbol, the screen glitches and a strange message appears in a deep red color:

"G̷r̴e̵e̵t̷i̶n̷g̸s̵ ̷G̶i̴o̷v̸a̷n̷n̸i̸.̶ ̸T̵h̶i̷s̴ ̷[̵R̷E̶D̴A̸C̷T̴E̶D̸]̶ ̶o̸f̸ ̵y̵o̴u̴r̵s̴ ̴h̶a̵s̸ ̴[̷D̵A̷T̵A̵ ̴E̷X̸P̴U̸N̸G̶E̵D̶]̷.̴ ̷T̵h̶i̶s̵ ̵s̸t̵i̷c̴k̴m̵a̴n̸ ̶i̴s̴ ̶q̷u̶i̵t̸e̴ ̴s̶p̵e̷c̵i̴a̸l̵ ̵i̶n̷d̶e̵e̴d̴.̵ ̷T̴a̵k̶e̸ ̵g̷o̶o̸d̸ ̷c̷a̶r̴e̸ ̴o̷f̴ ̵i̷t̴.̶"

This message was from Scratch Lunin (which is apparent by the signature of an electrosphere following the message), addressing Giovanni about the coming importance of the newly-created stick figure. The stickman gains sentience and is confused by its whereabouts.

Fearful of the stickman's power, Giovanni ignores Scratch's message and attempts to contain and attack it.

After a minute or so of Giovanni attempting to stop the stick figure, the screen glitches again and more messages appear:

".̴.̸.̶

̴I̴ ̷w̶a̷r̷n̴e̶d̶ ̸y̵o̵u̷ ̵G̸i̵o̷.̶

̷T̸h̸i̵s̷ ̸s̶t̶i̵c̷k̸m̸a̴n̷ ̵w̶a̶s̶ ̴y̷o̵u̸r̴ ̶p̴r̶o̴p̵e̵r̶t̷y̶.̷

/N̴o̸w̵ ̸i̶t̵'̵s̷ ̸i̴n̸ ̶c̴o̴n̴t̷r̴o̶l̵..̸ " The stickman escapes afterwards, and Scratch's messages disappear.

Trivia

 * Scratch's name was created from "Scratcherarrian", which was created from "Scratch" (a coding website) and "Terrarian" (Terraria), the creator's favorite game at the time. It was later shortened to "Scratch Lunin" (Lunin being the creator's real last name.) (Note that this name change is in no way related to the story, as Scratch's name stays the same throughout the series.
 * Scratch's design used to be a lot more simple, being a simplified version of unarmored Scratch, but eventually gained a pink scarf, and then a full on suit of armor.
 * His unarmored design was also changed various times after his armored design was created, gaining more detail over time.
 * This does not mean his design changed multiple times during his story, as in said story he is first created with his armor. This 'final' design stays roughly the same throughout said story, with a few burn marks and scars here and there.
 * It is unknown where his burn marks and scars originated from, though many speculate these marks were a product of Scratch's many battles with Cipher. Scratch refuses to confirm or deny this.
 * The unarmored version of him led to him being called "cranberry" a few times in the story, due to his head looking like a slightly deformed cranberry.
 * Scratch is not completely aware of Reds' potential, as his intelligence is surpassed by Reds.