The latest card is one of only three reported to be in perfect condition, explaining the stagging price tag
Basically, if your commander is a Shaman, Warlock, or Wizard and has blue in its color identity, I think youre going to want to run this
The whole good part about Vampiric Tutor is that it can be cast during your opponents turn, effectively having it put the card into your hand since youll draw it on your turn
This'll allow you to have a better chance of playing the cards you draw or get back
A single removal spell can undo a lot of your work, so its best to spread out your auras and threats when possible
You'll want other enchantments like Freed from the Real, which lets you pay a blue mana to untap it, keeping Ertai ready to counter the next spell coming your way