Dream Diner

During your upkeep, you may discard a card. If you do, you gain life equal to the number of {b} in that card's mana cost (hybrid black mana and {p/b} count towards this total as well).
A child having a nightmare may wake up and repeat three times, "Baku-san, come eat my dream." Legends say that the baku will come into the child's room and devour the bad dream, allowing the child to
go back to sleep peacefully.