There have historically been opportunities to buy in very cheap and if it gets reprinted, thats something we should take advantage of
So long as players keep their decks down to a reasonable size, manage the costs of their cards, and have plenty of cards to add to the Inkwell, their decks should be relatively well-balanced
Jonah Jameson Katara, the Fearless Lightning Bolt Loki, God of Mischief Mister Fantastic, Reed Richards Quicksilver, Brash Blur Shuri, Wakandan Inventor Sokka, Bold Boomeranger Spicy Oatmeal Pizza Tigra, Feline Fury Unlucky Cabbage Merchant
The same is true if an opponent's permanent gains one of those abilities after Shay Cormac's first ability resolves
Wizards has helpfully told us how many of each rarity are in each frame: Theres a special case in the rares, Hidetsugu, who Ill get to in a moment
Other deck archetypes will benefit too, but these are two that will receive the biggest uplift to bring them back into the meta.