I immediately went and bought 2 copies each at $600
Wizards of the Coast explained its logic for distancing MTG from tribal as a term, both internally and on printed cards, earlier this year
Roon of the Hidden Realm Roon of the Hidden Realm was one of the only possible commanders you could run for some time that had a built-in ability to blink creatures, which has kept it a popular commander since its release in Commander 2013
It only deals 30 damage, but it also returns Shaymin and all of the cards attached to it to the player's hand, effectively allowing them to make use of Set Up indefinitely until they either run out of cards or Shaymin runs out of HP
You defeat your opponent if you reduce their life points to zero, or if they've run out of cards in their deck and need to draw one
More than 140 different sets, dozens of formats, and about 30,000 cards can be very confusing