The Binding of Isaac: Four Souls Anniversary Booster Pack
The Binding of Isaac: Four Souls Anniversary Booster Pack Rulebook
Table of Contents
Table of Contents
Cards
Stat lines are printed as: Heart (health), Dice (the roll needed to hit, shown as "X+"), and Attack (sword). The skull icon on a monster marks its reward line. Icons are written as words below. The small arrow-on-sticky-note icon before an ability marks that ability's text as printed.
Game Crash!
Destroy each item and put each monster and each room into discard.
Keeper's Resting Place
When this enters play, the active player secretly puts this back in the monster deck at least 3 cards from the top. If this is the second time a card named Keeper's Resting Place resolves this game, this becomes a soul instead and the active player gains it.
Reward line (printed on card): +1 Soul.
Patch Notes
Choose three different players at random. The first puts a Heart counter on a non-eternal item they control. The second puts an Attack counter on a non-eternal item they control. The third puts an eternal counter on an item they control.
Tainted Spitty
Stats: Heart 4, Dice 3+, Attack 1.
If the attacking player would roll an attack roll against this, they instead roll X dice, where X is the number of souls they control plus 1. Choose the lowest as the result.
Reward line (printed on card): +2 Treasure.
Wrath of the Lamb
Each player votes for another player. The player with the most votes may steal a soul from another player. If there is a tie, the active player chooses a player tied for the most votes.
Daily Run
Stats: Heart 4, Dice 4+, Attack 1.
This room can be attacked. Each time this takes damage, gain 4¢ or loot 1, then you may cancel your attack on this.
-Indomitable-
Reward line (printed on card): +1 Treasure.
Greed Mode
Each time a monster dies, the active player gains ¢ equal to its Heart value.
Each (ability icon) ability on an item or character becomes a $ ability with "$: Pay 3¢:".
Guppy's Pieces
When this enters play, choose a card outside the game named Soul of Guppy. It becomes an active bonus soul.
(ability icon) Look at the top 5 cards of the treasure deck. You may gain up to 1 guppy item from among them. Put the rest on the bottom of the deck in a random order.
Multiplayer Update
Each time an attack is declared, each non-active player teams up with the attacking player.
If a non-active player kills a monster, they also gain its rewards.
Monster Card
Stats: Heart 6, Dice 6, Attack 6.
When this is attacked, reveal the top card of the monster deck. This becomes a copy of that card, then gains "If this would leave play, the active player puts it in their hand instead."
-Ambush-
Reward line (printed on card): "?" (the card face shows a question mark; no reward text is printed).
Cracked Key
Choose a non-eternal item. It becomes a room. Expand room slots by 1 and put it in the new slot.
(It's no longer an item and isn't controlled by any player. The active player can activate its abilities. Abilities that refer to "you", or don't specify a target, target the active player.)
Bum-Bo the Stout
Stats: Heart 2, Attack 1.
(ability icon) Play an additional loot card this turn.
Starting item: Bag-O-Holes.
Florian
Stats: Heart 2, Attack 1.
(ability icon) Play an additional loot card this turn.
Starting item: Game Squid.
Level One Isaac
Stats: Heart 3, Attack 1.
(ability icon) Play an additional loot card this turn.
You start the game with 2 additional loot cards.
Bag-O-Holes
(ability icon) Play an additional loot card this turn.
If you would loot, instead loot that much +1.
As your turn starts, discard your hand.
-Eternal-
Game Squid
When you declare an attack on a monster, you may give it +1 Heart and +1 Attack till end of turn. If you do, you may choose another player. They may team up for the attack. If that monster dies this turn, each player that made an attack roll against it this turn puts a Heart counter on an item they control without a Heart counter.
-Eternal-
Cards Not Transcribed
The following cards of the booster are not in the scans and are left out of this rulebook. Their text was not taken from any card face:
- Dataminer
- Prototype
- Booster Pack
- One further card, not identified from the scans
The booster is listed as 20 cards in total. Only 16 card faces are transcribed above.