This deck is looking to wear down opponents with removal and attrition before closing out the game with a legion of nightmarish attackers
As a sorcery, you may pay the mana cost of a locked door to unlock it.) Enchantment - Room Demon of Fate's Design Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost
Your opponents have to guess if you have it or not
Its a flexible cost reduction depending on what you need to produce, and it comes with self reset/protection
Very atmospheric art for Acid Rain, and Remove Soul just looks gnarly in all the right ways
Black-White decks, for instance, might enjoy the lifegain from Fumigate, or the reanimator-enabling Living Death or Lifes Finale