Crucible Cube is an unofficial variant format for KeyForge, introduced at KeyForge Celebration 2025 by Panic. This variant features a drafting phase where players construct their decks using a curated selection of cards. Ideally operated with 4 players.
Setup
1. Place four decks, each consisting of 53 cards that share the same house ('House Decks'), within easy reach of all players.
2. Place the top 5 cards of each House Deck face-up in a shared pile ('Group Discard Pile'). If you execute this format using Token Creatures, choose 5 token-making cards from each house and place them in the Group Discard Pile instead.
How to Play
1. Each player is dealt 5 cards from each house, plus an additional card from the house they selected to be included in the draft (21 cards in hand).
2. Choose 3 cards to add to your deck, then pass the remaining cards to the player on your left.
3. When you receive 6 cards from the player on your right, STOP.
4. Begin the Lightning Round, where players take turns choosing 1 of the following options until they have no cards left in hand:
- Discard a card to add a card to your deck from the Group Discard Pile. The card you choose must share a house with the discarded card.
- Discard a card to add a card to your deck from the top of a House Deck. The House Deck you choose must share a house with the discarded card.
- Discard a card to purge a card from the Group Discard Pile. The card you choose does not have to share a house with the discarded card
- Discard all remaining cards in your hand and choose a Token Creature to assign to your deck.
Note: If the cards in your hand during the Lightning Round don't fulfill the requirements for completing a legal KeyForge deck, you may treat those cards as if they belong to any house while choosing options.
5. Repeat steps 1-4, starting with a 21 card hand and ending with a second Lightning Round. Reverse the direction you pass cards and take turns during the repeated steps.
6. Players start each game with 1 chain per card that is un-used in their constructed deck, whether from 13 or more cards in any house or any cards from a 4th house.
House Vetruvian
An unofficial community-made KeyForge house exclusive to Crucible Cube.
001 Swarmking Scarab
002 Shrike Scarab
003 Obsidian Scarab
004 Amber Scarab
005 Blast Scarab
006 Silk Scarab
007 Crypt Scarab
008 Rasha's Curse
009 Ciphyron Obelysk
010 Wasteland Obelysk
011 Windstorm Obelysk
012 Simulcra Obelysk
013 Trygon Obelysk
014 Ethereal Obelysk
015 Scioness Sajj
016 Starstrider Oserix
017 Allomancer Zirix
018 Hexcaster Jjin
019 Orbrider Aymara
020 Hierosmyth Seryph
021 Iron Dervish
022 Wasteland Wraith
023 Imperial Mechanyst
024 Starfire Scarab
025 Hivequeen Scarab
026 Scarab Sac
027 Whisper of the Sands
028 Dunecaster Pax
029 Mirage Master
030 Shard of Mystery
031 Scion's First Wish
032 Scion's Second Wish
033 Scion's Third Wish
034 Forgotten Relic
035 Autarch's Lamp
036 Autarch the Wonder
037 Monolithic Vision
038 Edict of Light
039 Endless Eternity
040 Book of the Dead
041 Burden of Knowledge
042 Lazarith Fountain
043 Staff of Y'kir
044 Iris Barrier
045 Cosmic Flesh
046 Superior Mirage
047 Amber Skies
048 Gravity Well
049 Divine Spark
050 Oblivion Ritual
051 Oblivion Sickle
052 Lost in the Desert
053 Psychic Conduit
054 Cataclysmic Fault
055 Gemini Weaver
056 Khanuum-Kha
057 Obelysk Guardian
058 Chaos Warden
059 Fate Watcher
060 Sirocco
061 Astral Phasing
062 Time Maelstrom
063 Beyond the Veil
064 Star's Fury
065 Degeneration
066 Shadow Meld
067 Vow of Silence
068 Sand Sister Saon
069 General Kha-Knobi
070 Dominate Will
071 Call of the Ancients
072 Synaptic Arbitage
073 Scion's Call
074 Ravages of Time
075 Hexblade
