So I played this for the first time the other night, did the setup for three people and at the end of the gift phase there were two cards left over. I thought it was human error and we discarded them. It turns out that I have 89 cards instead of the listed 87. Also, I don't know if this version (Biblios) has the reference cards as listed (not mentioned in the rulebook) but I don't have any reference cards if it did.
What I have is:
5x resources lettered A-I. (45 cards)
3x values of gold, 11 of each value (33 cards)
2x +1 to 1 die
2x -1 to 1 die
2x -1 to 2 dice
3x +1 to 2 dice
2x either +1 or -1 to 1 die. (11 cards)
for 89 cards in total which always equals 2 extra cards.
So what do I have too many of? I couldn't find a breakdown online.
Take out one "+1 to 2 dice" and one "either +1 or -1 to 1 die". You can see the cards' breakdown on the inside of the box.