Condition matters more than usual because a damaged promo loses most of its premium
Cards with limited print runs, unique artwork, or error prints often command premium prices, especially when graded in gem mint condition
It becomes a lot more difficult to win with Thassas Oracle if your graveyard gets shuffled back into your library and Underworld Breach wont do much if your opponent doesnt have a graveyard
But these are just my predictions
Besides that, we also found out there's no true control deck in the environment post-ban, which is a strong indicator that we shouldn't be playing control
While perhaps not as badass as the original, it's a real glow-up from the arch-vamp's most recent appearance as a 'charmed groom' in Crimson Vow (although, seriously, how many cups of blood does one man need?)