Not a vampire but we're also adding Skullclamp because of course
While the latest Magic: The Gathering set has provided players with ample opportunity to fawn over the adorable denizens of Valley, its not exactly a viable strategy to choose your precon based on which one you think is the cutest
Graded Population Report: The Darkness Crystal [Borderless Foil] #335 Visualize the distrbution of grades in the chart
After taking another look these are cards you'll miss the least IMHO: Rune-scarred Demon (this is a lot of mana for the effect in my experience, and it's better in decks that win via combos), Burning Rune Demon (same as the above, but I like this card a bit more because it's 1 less mana), Patriarch's Bidding (this can be unplayable some games depending on the opponent's deck, and unless I'm missing something you don't have self-mill to make the card better), Kardur Doomscourge (I like this card a lot, but if you need to make space he seems pretty low synergy, also plays poorly with Propaganda effects on an opponent's board), and maybe Rite of Replication (I really love this card, but I feel like it's usually too much mana to 'do the thing', I also feel like you have a decent number of Legendary stuff that can't be copied usefully, I could see this being a pet card)
The scalable power boost puts this little guy over the top as one of the best leaders for red and white Commander decks