Troyes

Usually, no: an action uses 1–3 dice of the same color. The rulebook lists specific exceptions on Activity cards, and each die bought from another player costs 2, 4, or 6 deniers depending on whether the action uses 1, 2, or 3 dice (p. 5).

Yes. You pay 1 denier per citizen in the Bishopric and 2 per citizen in the Palace; if you cannot pay the full amount, pay what you can and lose 2 VP. City Hall citizens have no salary (p. 4).

No. Passing ends your actions for the rest of the round; you take 2 deniers when you pass, then gain 1 more each time your turn comes around (p. 7).

Yes. Red dice count double when countering black dice, and you may combine dice of different colors; you gain 1 Influence for each black die you counter. If you cannot beat the die, discard it without losing a die, but lose 2 VP (p. 4).

No. You need a tradesman on the card to activate it, but you hire and pay for one only if you do not already have one there; if you hire one, you must activate the card at least once that action. Activation uses the group’s total value divided by the card’s activation cost, rounded down (pp. 5–6).

No. This action always uses exactly 1 die: red for the Palace, white for the Bishopric, or yellow for City Hall, with the die’s value determining the placement (p. 7).