Grandmaster was a being who had lived for who knew how many years.
His existence could be traced back to the very beginning of the Big Bang.
He could well be called the oldest being in this universe.
Having lived so long, Grandmaster had to keep finding new ways to stave off boredom.
Until recently... well, perhaps it wasn't recent by anyone else's standards.
He had found something fascinating that never grew tiresome.
"Duels!"
Grandmaster cheered.
Those who wound up stranded on Sakaar became part of his dueling games.
With his long life and endless wealth, Grandmaster had made this planet prosperous and established a new civilization.
This was the boundary between worlds, and those who crossed it might end up here.
It was precisely these unique advantages that had led Grandmaster to settle here after his long travels through the universe.
Valkyrie told John, "He likes fighters. If you're willing to become his finest fighter, I think he'll like you."
"Really?" John raised an eyebrow. "Then why don't you become his fighter, Asgardian?"
With her identity exposed, Valkyrie glanced at John.
John waved a button in his hand.
It was a Neurotoxin Taser Activator, something Valkyrie used to capture warriors who landed on Sakaar.
Electric shocks alone wouldn't make those powerful fellows behave.
"Number 142?" Grandmaster had just finished watching a Contest of Champions, and he was quite taken with one of the new warriors.
With his fierce, agile movements, the newcomer had even defeated Grandmaster's champion.
Grandmaster planned to groom the fellow who called himself the God of Thunder into his new star fighter.
As for Ass-guard... sorry, Asgard. Please forgive a senile old man of indeterminate age.
When he first existed in this universe, Asgard hadn't even been founded.
Grandmaster welcomed Valkyrie at the sight of her.