Mystick Companion is an expansion for Mystick Domination, though it can also be played without Mystick Domination.From the back of the box:The world of Mystick grows larger and stranger with the Companion set as the Masters find new ways to create the future with new tarot cards. Each 78-card Companion deck is fully compatible with earlier Mystick cards and also stands alone as a complete game and tarot deck.The Basic Deck contains 78 new cards to get you started with Mystick or to add to your existing Mystick collection.Features - Stunning new classical artwork - Clever new strategies to stretch your imagination - New interpretations of each Minor Arcana card - User-friendly tutorial to get you started playing in minutes - Fast-paced play playing time 15-20 minutesExpands: Mystick Domination - BoardGameGeek