As your background, this will serve as a win con in any Aristocrats or Sacrifice matters decks in the Command Zone
Blasphemous Act is one of the best board wipes in the format, and the flavor of how the card is being used in the title is absolutely hilarious
For example, characters you can quest to gain lore or challenge opponents to slow them down from getting their lore
At first glance, the effective mana cost of this effect is 3 mana (2 mana to activate, and 1 opportunity cost mana from having to tap itself) but upon closer inspection, since it finds you an untapped basic land which you can then tap for mana, you effectively get refunded one of the mana, and the actual effective mana cost of this effect is 2, which puts it on-par with Tectonic Edges mana efficiency
The Precon List Before we talk upgrades, let's take a look at the stock list to see what we're working with: Upgrades Unleashed is a "Modify" deck which just means that it's a mix of Equipment, Aura, and +1/+ Counter themes: I count 11 cards that benefit any kind of modified creature, 24 cards that support specifically +1/+1 counters, 6 equipment, and 8 auras
