Grixis Reanimator wants to discard Archon of Cruelty or Abhorrent Oculus via Faithless Looting or Unearth it directly for a huge tempo swing. Surgical Extraction strips their Archon or Unearth from the graveyard before they can reanimate it, and a second copy handles the follow-up threat. Celestial Purge answers a resolved black or red threat like Archon of Cruelty or Emperor of Bones outright. Vexing Bauble taxes their cheap cantrips and discard spells, while Nahiri, the Harbinger provides recurring removal to keep pace with their card advantage engine. Claim/Fame and Warleader's Call are too slow and low-impact against a deck trying to punch through with a single giant reanimated threat.