Double Masters is a draft format focused on synergy and splashy plays. Gameplay is designed to play like a spiced up Masters set with 2 rares per pack.
The cube is composed of two pieces, a common module and a rare module. Each pack is seeded with 10 cards from the common module and 2 from the rare module.
Cards from the common module appear about as often as an uncommon in a typical expansion set. You'll see any given rare card about 1/3 as often as a common card.
Primary Themes:
Tokens
Blink
Prowess
Sacrifice
Self-mill