With Toph in charge, you can turn your lands into vigilant, unblockable attackersand even bend The Walls of Ba Sing Se , which becomes a land creature with absurd stats
However, like self-mill, this can have a psychological effect on newer players, which may be holding it back or be the reason why we so little of it at common
A threat/value-engine like Fable being this prevalent could be a problem, but the metagames seems to have adapted to survive it
There is also a niche tradition of decks leaning into Pacts weirdness, either by nullifying its lose-the-game trigger, or better yet, foisting it onto their unsuspecting opponents
What's strange is how much of the core Madrigal synergy is missing from it