Boros Dwarves is an equipment-based aggro deck relying on Leyline Axe, Lavaspur Boots, and Dragonfire Blade to pump small creatures, so Origin of Metalbending's artifact-destruction mode is excellent removal for their key equipment pieces, while its indestructible mode protects our blockers in combat. Warg Tactics's destroy-flying mode answers Warden of the Inner Sky once it grows wings from counters, and its protective mode helps our creatures survive combat against their aggressive curve. Snakeskin Veil is too slow against a deck this aggressive since it doesn't stop damage already assigned, and Elven Passage is the cuttable land since we need to prioritize blockers and removal over incremental land searching. This matchup is about surviving the early beats and stabilizing with bigger bodies like Mossborn Hydra and Mightform Harmonizer.