You draw before you discard, and that's important in a positive way
At first glance, this doesnt seem like a very efficient use of your land cards, but when you consider lands with enter-the-battlefield effects, as well as the ample land recursion options available , things get a lot more interesting
Scene cards from The Lord of the Rings: Tales of Middle-earth were a huge hit with fans and the Magic team alike, and it's easy to see why
Being compared to Tendo Ice Bridge, Aether Hub is a strictly better upgrade thanks to the versatility of being able to use multiple times if you gain Energy from other sources
At this point, Doubling Season seems to combo with pretty much everything, but planeswalker superfriends decks love it in particular, allowing most walkers to ultimate on the turn they come down