UBR is a value midrange shell with Fable of the Mirror-Breaker and Indomitable Creativity payoffs. Doorkeeper Thrull is a flash flyer that stops enters-the-battlefield triggers from artifacts and creatures, which shuts off Atraxa's enter trigger if they land it. It does not stop Fable's Goblin Shaman token from making Treasure, since that is an attack trigger, and it also turns off our own Fear of Missing Out enter trigger. Abrade can destroy artifacts like the Clue, Treasure, and Mite tokens they make, or deal 3 damage to kill a small creature such as the Goblin Shaman token. Voldaren Epicure and one Torch the Tower are too low-impact against their removal-dense, grindy gameplan, so they come out. Watch for Indomitable Creativity suddenly putting a huge threat like Atraxa or Valgavoth into play, and try to close the game quickly before they stabilize.