$100 List The $100 List does the same thing just better: we get Mutavault that we can fetch with Expedition Map and Weathered Wayfarer, more extra combats, and a bunch of generic upgrades
Avatar: The Last Airbender also has its own textless cards in Collector Boosters
When it is a benefit to your tribe that cannot easily be interacted with by the rest of the table and in the case of Edgar, does not cost you mana, it becomes something that leaves a reasonably sour taste in the mouths of the player base
Second ability gets you a Shivan Dragon every single turn, which is worth it if you don't need the ramping
In the first game, I cast an early Enchantress and got the card-draw engine rolling
Valakut Exploration The two best things you can do in Magic are draw cards and make land drops, so what if you got to do both in one package