Lucky Duck.

The sun god's face fell and the sky darkened because of it.

So they are crashing the party to start a fight, and they are publicly stating their interest in killing the celebrant to the father and host of the celebrant.

Stelios asked menacingly. "Are you sure? A none-lethal exhibition competition is always an option." 

The angel nodded in the affirmative. "I'm very sure your divine greatness. It is the will of the sky god."

A none-lethal exhibition is an option but the sky god does not want that. He wants to kill your son and watch your face change due to the loss.

Stelios then smiled, "Let it be so."

Everyone was surprised apart from Staniel. They had thought that a disagreement was about to take place between the sky god and the sun god about the competition. The sun god has clearly been magnanimous about allowing the sky god to choose a competition. His only request is that his demigod should be allowed to use his Rune weapon.