Affinity's entire game plan revolves around artifactsâThoughtcast, Refurbished Familiar, Utrom Monitor, artifact landsâmaking Steel Sabotage excellent both to counter their key artifact spells and to bounce a problematic artifact land or Cryogen Relic. The extra Negate helps stop Thoughtcast or Reckoner's Bargain from refueling their hand. Prohibit's low mana value cap misses many of their threats once they're online, and Meeting of Minds is too slow against their fast low-curve aggression, so both are trimmed. This matchup rewards proactive disruption of their artifact synergies over incremental card draw.