Illustration: Mr Cuddington
The wording doesn't specify "marked coin price", just "price", so this effect applies whether the price is marked in coins or some other currency.
The general principle is that you work out what you were going to pay, and then double it if it's coming from the Market.
Players have four options for building under this combination:
A similar approach applies with Renovation.
Previously "Park step: The cost to build attraction and upgrade from the Market is doubled."
The original wording caused some questions about interactions with other cards that modify the build price, such as Building Contractor or Renovation. The revised version standardises on the phrase "including all other effects" to address this.