The Black one has a 4/3 body on a four mana body that converts life gain from you into life loss of that amount for a foe hard to stop and a combo engine
The math dictates that your opponents simply cannot pay for every spell, turning this Common enchantment into one of the best draw engines in the format
The Quiver is sizable enough to have room for around five sleeved Commander decks, though if youre hoping for a case to transport decks in deck boxes, the Quiver might not be the best option
DemonDragonJ on Does Vault of the Archangel 1 year ago I have copies of Vault of the Archangel in several of my EDH decks, and that cards makes sense in my Liesa, Shroud of Dusk deck, but I am less certain if it works with the themes of my Sen Triplets or Tariel, Reckoner of Souls decks
Preston Garvey, Minuteman is another excellent option as your Commander in this deck too
Its an opponent, not necessarily the one you just swung at, which makes it quite good