Sneak and Show wants to resolve Show and Tell or Sneak Attack into Emrakul, the Aeons Torn or Griselbrand while protecting it with Force of Will and Flusterstorm. A second Hexing Squelcher gives us more copies of an uncounterable threat whose Ward also taxes their removal, and once it's in play it protects the rest of our spells from being countered. Thoughtseize can strip their Show and Tell or a protective Force of Will before they can deploy a giant threat. We trim Song of Creation and a surplus land since we need to be proactive and fast rather than grindy in this race.