I get that all of that is a ten-years-ago rate for Vampires in the world of Cordial Vampire, but this is another card I just think players forgot exists
Green Devotion has a lot of creatures and lot of mana, and Mastery of the Unseen plays beautifully with Courser of Kruphix (except that it lets your opponent know what your manifests are)if youre about to draw a creature, you can manifest in your upkeep so that you can be sure youll be able to flip it to gain life
Magic has more than enough self-mill to facilitate a swift flip, and I highly doubt you need much more than that to win with the proper setup
Of course, the only real way to deal with Progenitus is with a board wipe of some kind, but, even then, if it goes into the graveyard you just shuffle it back into your deck
Although finding misprinted cards can be an uncommon experience for most players, it is this same rarity that adds to the appeal of their existence