This was no native powerhouse from some random Parallel Universe within the MCU. This was a true visitor who had crossed countless Dimensions from far beyond the MCU's borders.
Uatu knew full well that the native beings of this universe had no power strong enough to stand against an unknown outsider like this. They had no means of keeping him in check.
But who won or lost had never been Uatu's concern. What thrilled him was that Russell's arrival had thrown the universe's established course into chaos, creating countless new possibilities.
Battles no one had ever seen. Mysterious powers no one had ever heard of. Each was a unique new entry in the historical record.
To a Watcher whose calling was to record the world in all its forms, such a fresh unknown development was the most precious material he could observe.
"Russell's strength is absurd. The Scarlet Witch's Chaos Magic puts her among the most powerful beings in this universe, yet against him, she might as well have been a child. He countered everything she did without effort."
Uatu had seen much and knew the secrets of the Multiverse. Even faced with this outrageous spectacle, he remained calm as he swiftly analyzed Russell's origins.
"The way he breaks down Chaos Magic so skillfully... Could he be an exceptionally gifted Mutant?"
His vast knowledge brought all manner of secrets to mind. Only recently, he had returned from surveying a peculiar Zombie Universe.
That universe had developed a system of Zombies all its own. The concept had become woven into the Cosmic Laws of the Marvel Universe, then quietly seeped through cracks between Dimensions in the Multiverse to influence numerous neighboring Single Universes.
Even peaceful, ordinary MCU branch universes had been affected, producing a weakened variant adapted to their local laws: