Terra Mystica Fire & Ice Expansion Board GameFire and ice descend upon Terra Mystica. The traditional factions must brace themselves for their new competitors: Yetis the masters of power, Ice Maidens who adore their Temples, Acolytes whose entire life is focused on the cults, and Dragonlords whose use their power to create volcanoes. And as if this wasn't enough, there are two more factions, namely Shapeshifters and Riverwalkers, who ignore the most basic of rules: one faction one terrain type.