Calin, Mana Reaper

+1: Sacrifice a creature: You may cast an Instant or Sorcery from your graveyard without paying its mana cost, then exile it.
-1: You may cast target Creature from your graveyard this turn.
-6: You gain an emblem with "Each Instant and Sorcery in your graveyard has a Flashback cost equal to its casting cost."