This expansion was given at Essen 2016 if you preordered the Game.
It was reprinted only in 2021 for events, conventions and as KSE.
The original version of this promo includes 1 rule card and 4 Bonus cards (1 Bonus Card per player).
The new version of this promo include 6 cards: 1 rule card and 5 Bonus cards (so also a card for the fifth player from HoR exp).
You can use your Bonus card once a game (discard it) to immediately make another turn.
The New Edition of Lorenzo il Magnifico already include many promos, but not this one.