He's a god, does that sound like the sort of thing a god would like?

[ A tip of his head, and a curl of his lip. If anything will convince Vash that Silco isn't to be trifled with... ]

Do you know how I obtained his favor?

I killed his sibling. [ Silco stop bragging about killing a god for FIVE MINUTES ] Though his favor often comes with...complications. He is not an easy god.