Oi! Hands off...
The Pi deck is the second set of gamers cards created by the players on the play-agricola.com website, and is a followup to the G deck (the original name of Pi deck was G2x),
A small correction: it was a follow-up to the WM deck, which itself was a follow-up to the G deck.
Surprised Lee doesn't know that, given that his picture is on one of the cards.