Along with that, it makes each nonland permanent you control every colour and allows all of your lands to be every basic land type - which is a huge boon for a lot of five-colour decks
Obviously, that number was hyperbolic, but then I wondered after the fact if I could indeed come up with a list that large off the top of my head
You need to be able to support a colorless Land, and if getting to isn't likely, it won't work, but Westvale Abbey is solid in many decks as a mana sink, and Ormendahl is a problematic threat no matter the situation
Things like Victimize, Karmic Guide, and Patriarch's Bidding
Well, kind of
But you know, this is one of the main ways to win a game of MTG anyway