Domain Zoo presents small, aggressive bodies like Wild Nacatl, Ragavan, and Territorial Kavu that Unholy Heat (especially at 6 damage once delirium is active) and Molten Collapse answer efficiently, and Molten Collapse's destroy mode also handles a Scion of Draco or Quantum Riddler. Street Wraith is a slow five-mana body in a matchup where the opponent can Lightning Bolt you freely, and its swampwalk is unreliable since the opponent mostly plays non-Swamp lands, so it's better swapped for cheap removal. Thoughtseize is crucial here to strip Scion of Draco or a key Leyline Binding before it can be cast. This is a fast matchup, so prioritize efficient removal over card selection pieces like the extra Bauble.