Su Ming felt that Shadow King and Knull's plan was probably this.
Shadow King would provide hosts for the God of the Symbiotes and help Knull recover his lost property. In exchange, Knull would help Shadow King eliminate his enemies and enslave humanity.
If Deathstroke had not interfered, Shadow King's plan really could have succeeded. The information he wanted from Charles was probably Legion's sealing location.
Because Legion's powers were too strong, coupled with his Multiple Personality Disorder, he had caused some unpleasant incidents in the past. He was overcome with pain afterward, so he decided to seal himself beneath the earth—commonly known as burying himself alive.
He prepared a roughly two-hundred-square-meter room, filled it with books and all sorts of toys for entertainment, then used his powers to bury himself somewhere beneath the Himalayan Mountains.
Without air, food, or water, he still would not die. His survival abilities were maxed out. All he needed to do was sit cross-legged every day to cultivate his mind and character, occasionally reading books and learning the wisdom of the sages.
To prevent his other personalities from taking control of his body, he had also sealed away his powers and part of his memories. It was a sacrifice he had made for this world.
Only Charles knew his exact sealing location. Even Su Ming only knew the general area. Back then, Legion had piloted his suite like a submarine and dived beneath the mountains, never to be seen again.
He had likely chosen the Himalayan Mountains because Kamar-Taj was here. Legion believed that if he ever lost control one day, only the Sorcerer Supreme would be able to kill him.
It was a precaution.
By the normal timeline, Charles had only been married to the Shi'ar Queen for a few years, and Legion