The English card summary for this reads:
Great landowner (one more cube in the collected guild card)
When collecting, the player add one cube from the collected
guild cards of 11 type in upper left of this summary)
My understanding of this was that you got one extra cube on ALL guild cards of the 11 types that you collect from. For example, if you collect from a stone pit, a woodcutter's hut, and a rice field all at the same time, you get one extra cube of each type.
However, some people felt this was too powerful, and you should get just one extra cube per collection (of one of the types collected). Which is correct?