Izzet Spellementals' threats like Hearth Elemental and Eddymurk Crab are mana value 6 and 7 on the battlefield, well out of range of Seam Rip, so Spider-Sense is key to countering the Prismari Charm or Traumatic Critique aimed at your creatures, or to stopping Sunderflock's enters-the-battlefield bounce trigger. Clarion Conqueror is a 3/3 flier that survives unkicked Burst Lightning and blocks profitably while denying any activated abilities on Ghost Vacuum, though it still dies to kicked Burst Lightning, Impractical Joke, or a big enough Traumatic Critique. Springleaf Drum and Nurturing Pixie are too slow against a deck built to chain cheap spells and outvalue you.