Egrassel and Tadmavriel

Tadmavriel, also known as The Father, is the main antagonist and key character of the Heart of the Universe season.
Some facts about the character:
The creator of the infected skint and the founder of the Church of Purification.
The locals believed him to be the one who brought goodness to Archaea in the form of the skint, but after the attack on Ashhold, they lost faith in him.
Was sealed together with his son by an ancient ritual.
Before Teirassa's death, he was a wise elf who brought only benefit to the development of Archaea.
After a long period of infection, he became cruel, domineering and obsessed with his "research".
Technically a planeswalker, as he has a spark, albeit in a very distorted form.
Tadmavriel's appearance before infection: a tall elf with long pointed ears and thin long arms, white or gray hair, eyes of a pale green hue.
Tadmavriel.. Father of infection. They called him father. But was it always like that? No.. Once upon a time he was an ordinary elf scientist, he had a beautiful wife and a healthy strong son. A wonderful life, respect among the elves, new achievements in science. However, a disease passed through the elves and affected their family. The wife fell ill and Tadmavriel tried to find a cure. He believed that his wife had a better chance of surviving with him and not in a hospital where dozens of sick elves lay. He was able to prolong her life, but the truth about how to create a cure eluded the father of science and at one point his wife left this world. Elves perceived death differently. They believed that after death there was an afterlife and a meeting with deceased relatives. However, Tadmavriel did not come to terms with this. He continued to look for a way to revive his wife, spending all his time in the laboratory. However, one simple truth eluded him. He doesn't care about his son, for him he is just a thing. Tadmavriel doesn't care about his son, power and strength are important to him, he uses his son for his own experiments and even uses his son's blood, he wants his adopted daughter, how similar she is to his wife, it seems to him.

Egrassel (also known as the Son) is a character in the Heart of the Universe season, the son of Tadmavriel.
Appearance: Tall, with pointed ears, light hair, and long, thin arms. Egrassel wears a pale gray shirt, over which he wears a green cloak with gold trim and rolled-up sleeves. Over the cloak, he wears a belt with a small bag, brown pants, and gray boots.
Personality: Calm, good-natured and reasonable. Egrassel vividly describes his feelings and events with many metaphors and epithets, which speaks of his literacy and erudition. Despite the fact that he wanted the best for the creatures in Archaea, he was extremely dependent on his father, Tadmavriel.
Capabilities:
a virtually unlimited supply of Spark: he had at his disposal not only his own Spark, but also the Spark of other planeswalkers (including the First);
transfer of Spark energy to other beings;
Spreading the Spark: He was the one who gave the Spark to the first planeswalkers;
almost complete absence of any aging processes;
the ability to move to any point in space and/or time period.
Some facts about the character:
One of Egrassell's first developments was the Elven Bracers;
Egrassel was one of the creators of the interworld masks together with Lololoshka;
owns an interworld mask with a unique design - purple with a crystal of pure skint on the forehead