As an added bonus, each time you sacrifice a land, each opponent loses two life
You do need to have some amount of board presence established for this to end the game, but it doesnt take too many creatures for this to overwhelm a table beneath a flurry of hooves, paws, and other things to make a lake of your table
You just force everyone else's creatures to block Anzrag and you prevent Anzrag from taking damage
Loam keeps putting lands from your graveyard into your hand (think fetches, utility stuff, premium duals), and dredge keeps it coming back
It was already somewhat well positioned in the meta, particularly against Ruby/Sapphire, and now, with Sapphire/Steel getting hit the hardest with bannings, its far better positioned
Not only that, but the Universes Beyond: Assassins Creed set is also launching with an entirely new type of booster