Crumena, the Tested

+2: Reveal the top two cards of your library, if they are an Artifact or Enchantment you may place them onto the battlefield.
-4: Exile the top 5 cards of your library, you may cast any Sorcery, Instant, or Artifact cards exiled this way without paying their mana cost.
-7: You get an Emblem with "You may cast Instant, Sorcery, Artifact, or Enchantment spells without paying their mana cost."