Omni-Tell wants to land Show and Tell to cheat Omniscience or Atraxa, Grand Unifier into play for free, backed by Force of Will and Veil of Summer protection, so Spell Pierce is a premium answer for stopping Show and Tell or a key noncreature spell before it resolves. Echoing Truth can bounce a resolved Omniscience or Atraxa back to hand, buying time to rebuild interaction. Consign to Memory adds a cheap counter for colorless spells or triggered abilities. We trim slow mana artifacts for maximum cheap interaction since letting Show and Tell resolve unanswered is usually game over.