Having an instant-speed commander in the command zone is quite nice for a mono-blue deck, and you dont even need to have all that many Moonfolk in your deck to take advantage of that ability
Both offer solid attacking power, with a relatively short ramp-up
Antiquities is hiding behind a single Argivian Archaeologist, but that one is Near Mint
Whether you want this to be part of your winning strategy or not, having any way of boosting +1/+1 counters, for example, the Mutant Menace decks Proliferate, can turn Walking Ballista into an insane burn damage powerhouse
The Magician of Black Chaos earned anime fame during his first appearance as Yugis winning Monster against Maximillion Pegasus in the Duelist Kingdom tournament
The Precon List Before we talk upgrades, let's take a look at the stock list to see what we're working with: Vampires are one of the oldest and most popular creature types in Magic and have shown up as supported archetypes in multiple Innistrad and Ixalan sets at this point (it's even the third Vampire precon!), so this precon has a massive card pool to pull from