This set of four Throne of Eldraine preconstructed Brawl Decks came out in 2019 and contain 20 cards (spread across the 4 decks) that are unique to the Brawl decks and Collector booster boxes
People wanted this version specifically and they made it a bonus card. They understood what everyone wanted the counterspell to look like but decided theyre going to make it a GAMBLE if you get it, notes u/Apprehensive_Debate3 in one of the most upvoted comments My god, and you know this thing is gonna be like 10 times the price of the normal one. They don't want to lose reprint equity by putting a $30 print in a $30 lair, but they want to turn the drops into a lottery to create future FOMO a la Fallout Mana Vault or Miku Snapcaster Mage, says u/easchner
Soratami Rainshaper Soratami Rainshaper was always a meme of an idea, far worse than Soratami Savant, which is still pretty bad
Warcry can block, though, which is a slight nod in its favor
We could not find a direct quotation from the man himself about this, but search Harold Arthur McNeill and see for yourself what comes up
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