[ He nods first, since the rarity is roughly similar to his own experience. However, the rest absolutely is not. ]

My... You must have called out to an especially whimsical one. Did they ask anything of you?

[ So much so that Sebastian nearly laughs, since it's just so very much the opposite of how his own summonings went. Of course, it's no minor thing to Matt, so he keeps that reaction to himself. Instead, he elaborates. ]

Not to minimize the experience, of course. It is more the fact that you would not have even be able to summon most of the ones I know simply because you wished to see if you could. Certainly not myself. [ A shrug ] Hopefully this does not sound like bragging, but I am no minor demon to summon, though. So my terms are not exactly typical.