Souls are of no use to me. They're insubstantial things at the best of times. And bought allegiances tend to be fragile things. So not those either.

As for the last, in my defense, first-born children are delicious. [He lets this hang in the air a long moment before he dissolves into laughter at that.] Ah just a joke! I have made deals involving children, yes. A king and queen who couldn't have their own and needed an heir, for example.