Lesson in Lava

Lesson in Lava deals X damage to target player.
Then search your library for an instant or
sorcery and exile it. You may cast that spell
this turn as if tho it had flash. Your next instant
or sorcery spell costs {r} less where {r} is the
amount of damage dealt by Lesson in Lava
Exile lesson in lava
"You will witness my techniques firsthand"
~Kano