Domain Zoo is another aggressive deck packing efficient threats like Territorial Kavu and Ragavan, Nimble Pilferer alongside interaction such as Fatal Push and Stubborn Denial. Thoughtseize taken on an early turn can clear the way for your own threats by stripping their best removal or counterspell. Dreadhorde Arcanist adds a resilient body that also rebuys Lightning Bolt or Lava Dart to answer their small creatures or close out the race. Mutagenic Growth and Violent Urge are cut for the extra card advantage and disruption, since both decks are racing on similarly sized threats and the player generating more value tends to pull ahead.