Leo here is fairly experienced in matters of spiritualism, so this is right up his alley. He's also been to Dreaming before... but Death, that would be a refreshing new experience.

He has all the magical prowess of a rock, so while he'll probably learn the spell, there's no way he's gonna be able to do anything with it. But he's always invested in giving one hundred percent to anything he learns, and knowing there's so few of them who can do this means he's more than willing to be a team player for this one.