Archetypes are:

Esper Politics
Bant Control
Grixis Chaos
Jund Goad
Naya Group Hug

4-6 Players draft 3 packs of 20, Two cards at a time

All monocolored Legendary Creatures gain Partner.

Drafting The Prismatic Piper represents a Conspiracy that says:

"At the start of the Game, you may reveal a Legendary Creature with exactly two colors in its color identity. That Creature gains Partner and can be your Commander."