Players may construct their own custom Summoner Wars decks by mixing cards from different faction decks (sold separately).
To construct a custom Summoner Wars deck, select and add to your deck all of the following:
In Summoner Wars, every summoner has three build symbols. When building a custom deck, a player starts by choosing a summoner. Their summoner's build symbols will then determine which units and events they are allowed to add to their deck.
In addition to the martial symbol, there are 12 other build symbols. Each of those 12 symbols represents a distinctive theme and general play style.