Unofficial hex - Ghost Castle

Unofficial hex from Mexico.

Ghost Castle: Replace the desert or any hex of your choice with the ghost castle hex and add a number token to it. If the number on this hex is rolled, take one resource card of your choice for each settlement built on it, but don’t add these cards to your hand. These are ghost cards, place them in front of you, facing up. These cards can’t be traded, can’t be stolen by the robber and they don’t count if a 7 is rolled. During your turn you may spend these cards, but any ghost cards left unspent at the end of your turn will vanish; return them to the stock. Cities produce 2 resources of your choice. This hex can’t produce commodities if played with Cities & Knights, only resources.