Willow studies Lucifer for a long, silent moment, debating how best to answer the question.

"Spellbooks and ingredients seem to be kind of hard to come by around here, so really, not much," she admits. It's an honest, if incomplete answer. There are a few spells she can cast from memory, ones that don't require anything more than being able to focus and speak an incantation, like the one she knew the butterfly was thinking of to try to get them out of the maze.

"What sort of power do you have?" She's still not sure how much she wants to trust him, but there is curiosity behind the question.