In the case of Graveborn Muse, The List version of this card started February as one of the more expensive versions available ($5, compared to the $3 Legions version and the $4 10th Edition version.) So it didnt start seeing heightened sales and price increases until after those other versions had already begun to rise, as players picked up this one-card draw engine for Zombie decks to go with Hashaton
Now I want to skip to the last slot, the foil-etched, before getting into that everything all at once slot before it
However, thats very clearly what Rielle, the Everwise is designed for
This can only work at Sorcery Speed, however, so you wont be able to repeat the final ability of Sagas
This is why I always recommend buying the best uncommons ASAP: the outlay tends to be small and the payoff is not having to drop a bunch of money on them later
There are also tons of combos that generate infinite mana and allow you to draw your entire deck, eventually finding the combo that'll win the game