Eldrazi runs its own Chalice of the Void mainboard, so Metallic Rebuke at 3 mana is often dead or uncastable post-Chalice, and Urza's Bauble can get shut off the same way. Dismember is strong removal against Thought-Knot Seer, Reality Smasher, and Glaring Fleshraker, all of which die to -5/-5. Tormod's Crypt is low-impact here but gives us a cheap artifact to feed Mox Opal/Urza's Saga while denying any marginal graveyard synergy. Sequence carefully around their Chalice and Ancient Tomb-fueled fast starts; this matchup is mostly about racing and removing their threats before they stabilize.