Mythic Rares were introduced in the Shards of Alara block in 2008, and have had a dramatic impact on the financial landscape of the game, draining value from the lower rarities in much the same way that Expeditions (Battle for Zendikar/Oath of the Gatewatch) and Masterpieces (Kaladesh) do to the expected value of booster packs in their respective sets
Impressive sorceries and instances, along with some of the strongest creatures in the set are all based in green
Hopefully, Wizards of the Coast will be finding a way to make Rare wildcards easier to attain
Sacrifice a food, they lose a life, make a ballistic boulder with the Mordor Trebuchet, they lose a life, and so on
Like Sol Ring did years before it, it fast became a firm auto-include in Commander decks, providing straightforward, no nonsense efficiency
Landcycling abilities are usually given to cards that have a high mana value