https://www.reddit.com/r/MTGLegacy/comments/3z74gq/try_to_convince_me_between_rug_lands_or_uwr/

Crucible of Worlds or Smokestack could go in for the Sylvan Library.

In the Sideboard, Zuran Orb may be better than Thorn of Amethyst in Burn-heavy metas.

—

For a white-splash version:

-Bayou
-Urborg
-Ghost Quarter/Not cutting a card and staying at 61
+Savannah
+Riftstone Portal
+Horizon Canopy (I can't leave home without a cycler...)

Board Changes
-4 Confidant
+2 Thalia
+1 Ethersworn Canonist
+1 Phyrexian Revoker or Containment Priest depending on if you face a lot of sneak or reanimator.