This matchup is a race and a battle of value engines built on Eldrazi Temple/Urza's Saga/Ugin's Labyrinth plus Basking Broodscale and Devourer of Destiny; Nature's Claim cheaply blows up their mana-fixing lands like Urza's Saga tokens are irrelevant but their equipment (Blade of the Bloodchief) is a great target, and it also answers any artifacts they bring in. Thundertrap Trainer digs for answers while blocking their small creatures, and Dismember cleanly kills Basking Broodscale or Glaring Fleshraker before they scale up. Pact of Negation is weak here since they have few must-counter spells worth a free counter, and Nourishing Shoal doesn't affect the board against a deck racing on creatures, so those come out. Keep Consign to Memory in since it stops Kozilek's Command and colorless spells like Devourer of Destiny and Emrakul, the Promised End's cast trigger.