Hearthhull, the Worldseed turns land-sac into powerful card draw
Whenever you cast a creature spell with mana value 4, 5, or 6, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this token: Add ." Whenever you cast a creature spell with mana value 7 or greater, draw three cards
With a big enough army, you can push through all your opponents' defenses to poison out all your opponents in a single turn
Sometimes it takes most of your resources on your worries-free turn to have progressed your Game Advancement sword to be ready to close the game, but without easy access to haste in mono-white, you have to lean on Game Control in one of a few ways: you can phase yourself out or you can strip your opponents of their ability to stop you
Still, it should be a fun play