1 Booster box contains 36 booster packs of MTG Conspiracy Singles #12
The other two can be any from a list of 10 reprints, including Commander staples like Deadly Rollick and Enlightened Tutor
Gameplay-wise, Charlie has 1 in every stat and is pretty much unable to do anything on its own, and can only take up to level 2 cards of any class, but at deck creation he can choose which two classes he can access cards from and he can get essentially any Ally in the game without any level or class restriction, which he can make very good use of given he starts with 4 allies slot, when most investigators only start with 1
Cards Articles Deck-Types Decks
Press X to Die: Challenging the Duel Computer in the KaibaCorp building lets the player pick between three difficulty settings
Since Seals has 0 ATK, your opponent will usually try to battle over it before committing a lot to their plays to avoid getting disrupted