--- key: mechanic/deck-building--family-synergy type: mechanic id: deck-building--family-synergy lang: en title: Synergies and deck composition requirements summary: >- Cards and modifiers reinforce each other with a specific deck composition or action sequence. updatedAt: '2026-10-22' status: active url: 'https://gamemechanics.pro/en/knowledge/mechanic/deck-building--family-synergy/' jsonUrl: >- https://gamemechanics.pro/api/v1/knowledge/en/mechanic/deck-building--family-synergy.json markdownUrl: >- https://gamemechanics.pro/content/knowledge/en/mechanic/deck-building--family-synergy.md aliases: - Synergies and deck composition tags: - Deck building - Card operations sourceIds: - source-078803ab9784c9da - source-59be3d32feccd794 - source-10b015ff3d1d4888 sources: - id: source-078803ab9784c9da title: Star Realms FAQ url: 'https://www.starrealms.com/faq' verifiedAt: null - id: source-59be3d32feccd794 title: Balatro Playstack url: 'https://www.playstack.com/games/balatro/' verifiedAt: null - id: source-10b015ff3d1d4888 title: Balatro url: 'https://store.steampowered.com/app/2379780/' verifiedAt: null relations: [] placements: - catalogId: deck-building id: family-synergy title: Deck building url: 'https://gamemechanics.pro/en/mechanics/deck-building/#family-synergy' categoryIds: - section-2 supersededBy: [] attributes: preview: updatedAt: '2026-10-22' title: Synergies and deck composition description: >- Cards and modifiers reinforce each other with a specific deck composition or action sequence. image: src: images/mechanics/systems-balatro-07.webp width: 1440 height: 810 game: Balatro sourceUrl: 'https://store.steampowered.com/app/2379780/' originalUrl: >- https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2379780/ss_204350350761316ad3aa8b0184689f3f93e01f7b.1920x1080.jpg?t=1790693638 credit: LocalThunk / Playstack rights: © LocalThunk / Playstack. All rights reserved. caption: 'Fibonacci boosts aces, twos, threes, fives and eights' alt: 'Fibonacci boosts aces, twos, threes, fives and eights' markers: - x: 49 'y': 37 label: Matching ranks add +4 Mult when played tips: - Show synergy requirements and ways to assemble a matching deck. examples: - title: Balatro url: 'https://store.steampowered.com/app/2379780/' endsAt: null provenance: >- Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review. license: CC-BY-4.0 codeLicense: MIT attribution: gamemechanics.pro contributors catalogKey: catalog/deck-building --- # Synergies and deck composition requirements id: deck-building--family-synergy type: mechanic key: mechanic/deck-building--family-synergy lang: en status: active url: https://gamemechanics.pro/en/knowledge/mechanic/deck-building--family-synergy/ Cards and modifiers reinforce each other with a specific deck composition or action sequence. ## At a glance ![Fibonacci boosts aces, twos, threes, fives and eights](https://gamemechanics.pro/images/mechanics/systems-balatro-07.webp) [Balatro](https://store.steampowered.com/app/2379780/) · © LocalThunk / Playstack. All rights reserved. 1. Matching ranks add +4 Mult when played - Show synergy requirements and ways to assemble a matching deck. - [Balatro](https://store.steampowered.com/app/2379780/) ## How it works Why do some sets of cards work together, while others require a different deck composition. ## Variants ### Variants and applications - Faction synergy. Rule: A card is strengthened if there are other cards of the same group in the hand, deck or among those played. - Threshold synergy. Rule: The effect turns on after reaching a specified number of cards, items, charges or draws. - Duplicate synergy. Rule: Several instances of the same name or characteristic reinforce each other. - Singleton synergy. Rule: The effect requires no duplicates or encourages a variety of cards. - Deck-size scaling. Rule: The power of a card or passive effect increases with a large, small, or other specified deck size. - Composition synergy. Rule: The effect checks the proportion or absence of attacks, skills, resources, suits and other categories. - Discard synergy. Rule: Voluntary or forced discard becomes a source of resources, damage, drawing or returning cards. - Exhaust synergy. Rule: Temporarily removing cards activates other effects and helps reduce the working deck of the current battle. - Trash synergy. Rule: Destroying cards provides additional benefit, turning deck clearing into a growth engine. - Cycle synergy. Rule: Frequent collection, reuse and transition between cycles trigger associated rewards. - Curse synergy. Rule: Curses, wounds and other unwanted cards are allowed to be turned into benefits or used as a bonus condition. - Empty-zone synergy. Rule: The effect increases with an empty hand, deck, discard, or absence of a certain category of cards. - Set / poker-hand synergy. Rule: You need to collect a sequence, set, suit, rank or other formal combination of cards. ## Context and limits Design taxonomy of basic rules and options, including card operations and external systems. The number of entries is not a generally accepted classification of independent mechanics. ## Connected materials ## Sources and provenance Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review. - [Star Realms FAQ](https://www.starrealms.com/faq) (id: source-078803ab9784c9da) - [Balatro Playstack](https://www.playstack.com/games/balatro/) (id: source-59be3d32feccd794) - [Balatro](https://store.steampowered.com/app/2379780/) (id: source-10b015ff3d1d4888) CC-BY-4.0 · gamemechanics.pro contributors