Boros Energy wants to curve out with Guide of Souls and Ocelot Pride into value engines and hard-cast Blood Moon or Goblin Bombardment to grind you out. Thoughtseize lets you strip their key enchantment or removal spell (Galvanic Discharge, Lightning Bolt) before it resolves, keeping your clock intact. Wear // Tear is live on Blood Moon or Goblin Bombardment with its Tear half, or a Cori-Steel Cutter-style artifact with Wear, and can be split across both halves thanks to Fuse. Mutagenic Growth and Violent Urge are combat tricks that matter less against a deck racing you on board rather than trading in combat, so they come out for proactive disruption.