Boss Monster: Overboss Bonus Pack Promo Cards, Layer by Layer

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Expansions & Promos

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About the Game

Two promo cards for Boss Monster included in the Overboss: A Boss Monster Adventure – Limited Edition Bonus Pack. These two cards can be used in any of the Boss Monster base sets.

Cards included are:

The Collective (Boss) - After Leveling Up: For the rest of the game, once per turn, you may remove a face-down hero in your scorekeeping area from the game to give a Room +5 until end of turn.

Overworld Gate (Advanced Trap Room) - When you build this room, if it is leftmost Room of your dungeon, you may choose one Epic Hero in town and place it at the entrance to your dungeon.

Filed Under

Categories: Card Game Expansion for Base-game Fantasy Video Game Theme
Mechanics: Hand Management Player Elimination Take That Variable Player Powers
Family: Boss Monster
BGG ratings: 36 · geek rating 5.53
BGG data: refreshed Sep 7, 2026

Boss Monster: Overboss Bonus Pack Promo Cards 2020