Null Rod shuts off Lotus Petal and any artifact-based mana acceleration they rely on to power out Reanimate or Animate Dead early. Barrowgoyf is a strong lifelink deathtouch blocker that can trade favorably and grows large as graveyards fill from their Faithless Looting and discard outlets. Daze is weak since they aren't pressuring your mana base early and bouncing your own land is a real tempo loss against a combo deck racing to reanimate Griselbrand or Atraxa. Keep Thoughtseize at full count to strip their reanimation targets or enablers like Dark Ritual and Animate Dead before they can go off.