Secondly, you can use it to untap any permanent, whether that's the Bloom Tender above or a Gaea's Cradle
Theres even a new set of rare dual-color lands that have a land on each side, letting you choose which to play, which shows WotCs willingness to innovate with this new mechanic
"Wizards of the Coast catches Pokmon Trading Card Game rights!" (Press release)
your catalog, pricing, merchandising, and fulfillment convert it
Designs that used the madness mechanic were unlikely to be able to thread that needle, since madness as written was incompatible with the command zone
In practice, this meant games were essentially a race to Lin Sivvi, and whoever would play their copy first would lock their opponent out of playing their Lin Sivvi, which allowed the first player to tutor up a bunch of Rebels and win the game