The Quartet cube is a low-powered, synergy driven cube inspired by the design principles espoused by posters on the riptide lab forums.

Rather than build the design skeleton around 2-color archetypes, the cube is built around 4-color "quartets". The purpose of this design is not to promote 4-color decks, but to allow drafters to mix and match from themes dispersed amongst the majority of colors, multiplying the number of viable decks and providing an opportunity for repeatable, flexible, exploratory drafting that hopefully never feels on rails

The 5 "quartets" are as follow:

WUBR - Artifacts
UBRG - Discard
WURG - Lands
WUBG - Graveyard
WBRG - Sacrifice