These lands sit at the very top of a playability pile being things I am almost never leaving out of a deck which is some reasonable % black, say a quarter or so minimum
This is made a lot easier with cards like Treasonous Ogre and Magnetic Theft
You also don't want to waste spells on your opponents' turns when possible, because churning out these Elemental tokens is quite key to victory
When this enchantment enters, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add ." Eldrazi you control have ": Add one mana of any color." Whenever you cast a creature spell with mana value 7 or greater, you gain 4 life
Plus, it has lifelink, and whenever you attack an opponent, theyll discard a card to further grow this vampire
You can jump through hoops to refill off of Pursuit of Knowledge or Well of Lost Dreams, but your best source of multiple cards in a turn (cycle) remains the expensive white draw options