Gojo's Hollow Purple — Cleaving Space Itself
During the Hidden Inventory arc flashback, Gojo's Infinity is destroyed and he is wounded for the first time. Dying, he expands his Six Eyes to their limit, reconnects with the Infinity, and awakens the Limitless to its fullest — then fires Hollow Purple, the technique that combines both Red and Blue into a void that erases everything in its path.
Why it lands: A god reawakening. The moment Gojo became the strongest sorcerer alive, played in reverse from the end of the fight.