Forum Trajanum: Essen Promo Cards is a promo pack that contains three "Trajan" cards. Forum Trajanum comes with twelve Trajan cards, so this pack provides three extra Trajan cards for more variety and replayability in the game!
To collect this pack of promo cards at SPIEL '18, you need to find three of the four Romans on patrol in the Messe in Essen. Yes, four Romans in traditional garb are wondering the Messe Halls in Essen, and they are stamping a promotion card. These promo cards will be available at the HUCH! and Stronghold Games booths at SPIEL '18. Once you get three or four stamps, the card can be turned in for this pack of promo cards!