4c Artifacts plays almost no early creatures and instead builds up with artifacts like Cryogen Relic, The Mind Stone, and Simulacrum Synthesizer, so Shattered Acolyte's sacrifice ability is a clean way to destroy a key artifact like Pinnacle Starcage or Perilous Snare that's holding down one of our threats. Get Lost also answers Perilous Snare or Pinnacle Starcage to free a locked permanent. Two Dragonfire Blade and one Iron Hills Blacksmith are cuttable since this matchup is a race we win by applying steady pressure while picking off their key artifacts rather than overinvesting in equipment.