There are 16 factions in Summoned Wars. In this Master Set each faction is paired up with another faction to form 8 alliance decks. Alliance decks explore the mixing of two faction play styles to create fun and unique experiences. This is not a repackaging of products that exist elsewhere in the line. Every deck and every card is unique to this set. The Alliances Master Set is a must have for any Summoned Wars fan as it includes card dividers and room for players to store other Summoned Wars purchases in the box. Ages 9+, 2 players, 30-60 minute play time.