On outer space, where a human goddess brought her followers to face a dragon god…
"I had to leave because a source of my power had been cut. That changed the conditions of the challenge."
"Is that so…? I fail to see how that would be a valid reason to turn tail in the middle of combat."
"I challenged you with a certain amount of strength. Then something happened outside of said challenge that weakened me. Continuing the challenge and taking advantage of that would be dishonorable, wouldn't it?"
"The challenge stipulates that the challenger is confident in their own strength and has the means to guarantee it. If they lose their ability to fight, it's merely proof of their own weakness and foolishness."
The dragon was approaching, slowly. He had diminished its speed from the faster-than-light he had before to one that would let the humans see him well as he approached.
He wasn't in a hurry anymore.