Sword of Feast and Famine is definitely a favorite, too: The moody sky, the glowing moon, and the fact that you can untap all of your lands by dealing damage to an equipped creature make it viable just about anywhere
I always complain about how little black targetted discard there is
Madness is such a strong effect as it turns discarding, something that can be a downside, into extra value with a discounted spell
Even with their differences, each party may want to know some of the most expensive cards so that when cracking packs or looking for singles they can instantly know if their purchase is worth it
However, Braids's controller can benefit more from such an ability by constructing a deck to plan accordingly for this ability and always get the optimal value out of the effect, directly playing cards like the infamous Blightsteel Colossus and Eldrazi titans for free