Having zero lands that enter the battlefield tapped means you have fifteen sources of green mana on turn one, which makes both Elvish Mystic and Experiment One much better than in other versions
Remove a threat and give it to you, and then sacrifice it again
Well, Reign of Jafar is another story entirely as these look amazing
Enduring Renewal From Ice Age Rare Play with your hand revealed
Its not a unique card effect wise, and its really straight forward, being just a fog in black, but the most notable thing is that you can run it in a black deck without access to white or green to save your hide
As Commander decks have become more efficient, with more targeted removal spells, and players have gotten better at identifying commanders they don't want to play against and having pregame conversations, so that gives us the confidence to bring back Braids