"I like playing well enough. Beelzebub is fond of any game that requires strategy." Not that Abigor thought that would surprise anyone.

Abigor leads the way over to the human.

"Sir Galahad?" They ask politely waiting for the human to acknowledge them. "This is Aziraphale. He's one of the angels from another creation than ours, and a celestial."

Those few words covered most of the basics quickly. They knew Galahad was new to this and might need more background for now.