Allowing cards to be played in mono-colored decks is one thing, but in this case any deck could play Beseech after the change, since its a hybrid black/colorless card
They do actually have a played foil oversized Griselbrand in stock, listed for $93.49
Marauding Raptor can be risky because it deals damage to your other creatures as they enter, but the only creatures that are insta-killed by that are Otepec Huntmaster, Sakura-Tribe Elder (which you can sacrifice for a land before it officially dies anyway), and the vampire tokens made by Ghalta and Mavren
While I had always been a fan of the art of Magic, for the first decade of playing the game I only ever thought about the games art in terms of how reprints could be a gateway to different interpretations of the same idea and be an extension of my decks aesthetic
The first and most important is a way to deal consistent damage to your opponents, ideally each one
Note that this price spike only applies to the original Odyssey printing of Braidsthe more recent printing from Modern Horizons 2 grew a similar percentage, but still costs under $1 per copy