"I've never heard of that place..." Vivi muses with a shake of his head. He's not sure what the other means by spirits unless he really is being literal, but he's going to safely assume it's some form of magic he hasn't heard of yet.

"Discipline...? Um..." How should he word it? It's not often he's asked to go into detail about his spells. "I can use black magic, which is mostly made up of offensive spells."

Or virtually all of it is offensive. He really wishes he could learn white magic, not that it matters at all anymore, with where he is now.