Promotional Cards are limited edition cards that are printed to commemorate an occasion.
They are not sold in standard packets and are only available at special events.
Here is a list of known promotional cards, their descriptions and what they commemorated:
Spirit of Christmas [Winter 2012] Edit
The rarest card in the Buck: Legacy collection: Spirit of Christmas was a hidden bonus card given to all the customers who pre-ordered Buck: Legacy 1st Edition.
The card was regarded as the most overpowered treasure card in the entire game, and had a sell value of 200g.
Britannia's Retinue [August Annually] Edit
The card allowed the controlling player to increase any dice rolls.
Multi-Manoeuvre Gear [August Annually] Edit
An item card that used tesla to provide combat strength and escape roll buffs.
The card is only available to buy once a year at the B.U.C.K convention in the UK.
1st Edition Bat Pony [October Annually] Edit
Bat Ponies are very strong races that negate resistances.
This character creation promotional card comes in a pair, it's spooky themed, so they only appear during halloween.