The Rivals for Catan: Gavin the Polyglot (2013)

This 2013 promo card for the Rivals for Catan was given out by Klaus Teuber at SPIEL 2013 in Essen (and can also be bought in the Catan Shop). A limited English-language version was released during a Cyber Monday promotional at the Catan Shop on Dec. 2, 2013. Only 50 copies were listed as available to the public and a $50+ online purchase was required.

It is a unit/hero.
It costs 1 lumber and has 1 skill point.
It has a red "Base Game" back.

German text of the card:
"1 x in Ihrem Zug: Sie dürfen 1 Rohstoff einer Landschaft, in der Sie 3 Rohstoffe besitzen, gegen 1 beliebigen anderen Rohstoff tauschen."

English text of the card:
"1x during your turn: You may exchange 1 resource from a region where you have 3 resources for any 1 different resource of your choice."