He enters Innistrad with a decent set of abilities that allow some card advantage, protection, and an annoying emblem that forces your opponent to really strategize. Jace, Unraveler of Secrets is similar in some ways to Teferi, Hero of Dominaria
If they roll doubles, sacrifice GO TO JAIL
By farming all available missions, you should be able to accumulate a solid amount of Pack Hourglasses to open an extra 1-3 Booster Packs per day at minimum, or even up to 10+ booster packs, depending on how many missions you still have available at the time
I include it only to note that the tutorial is misleading
The devotion ability just isnt reasonable in multiplayer environments, making this Theros all-star not just the best zombie in Magic, but one of the best black cards ever printed
Pulling a Holo is therefore less common than pulling standard Common or Uncommon cards