WUBG's Oath of Druids is the biggest threat here since it can cheat a large creature into play, and Naturalize gives you a cheap, instant-speed answer to destroy it before it triggers or immediately after to prevent future activations. Cursed Scroll is a fine cut since its damage is too slow against Terravore, which grows every turn as lands from Thermokarst and Winter's Grasp hit graveyards. Keep Swords to Plowshares at full count since it's your best tool for cleanly exiling an Oath-cheated creature or a growing Terravore before it becomes unmanageable. Your aggressive low curve punishes their Sphere of Resistance-taxed, land-destruction-heavy plan, so otherwise keep the build largely intact.