The Cube of Cthulhu is a Lovecraftian horror themed cube filled with horrific cards from throughout Magic's history, though it draws heavily from cards set in both Innistrad blocks. Focused heavily on flavor, The Cube of Cthulhu does a few unusual things in order to make sure the gameplay is flavor-forward. Singleton rules are largely upheld, though they ignored when necessary for flavor reasons and to help support some archetypes/mechanics with less cards to choose from. Additionally, certain cards come with a "combo package" of another card the drafter can choose to add from the token pool to ensure fun, flavorful decks.

Combo Packages
Gisela, the Broken Blade + Bruna, the Fading Light
Docent of Perfection + Delver of Secrets & Aberrant Researcher
Triskaidekaphobia + Tree of Perdition
Hanweir Garrison + Hanweir Battlements
Arachnus Spinner+ Arachnus Web
Witch's Oven + Cauldron Familiar