Gamechangers for a Sauron deck The Ur Dragon The Ur Dragon offers a simple strategy, but it's still powerful enough to stampede casual commander tables (and steal a few more competitive wins, too)
You can wait until your opponent declares blockers, then cast a pump spell on your attacker
Scions & Spellcraft trades the typical color that cares about instants and sorceries in for and sits in an interesting space among spells-matter decks with slightly fewer creatures
Without any evasion abilities, The Ancient One may struggle against any deck with chump blockers
Naturally this makes lands like Ancient Tomb, Serras Sanctum, and Nykthos, Shrine to Nyx prime tutor targets for a lot of white decks, but if youre trying to find missing colors of mana in multicolor decks, simply being able to snag a Raugrin Triome or Temple Garden can also make the difference between getting off the ground or getting mana screwed