Assuming Slaver is in play (when you build an Egyptian location you can pay 1 more Stone/Gold to get 1/3 Victory Points) and I want to build Sphinx (Whenever you get 2 VP at least you gain 1 more VP), can I pay 1 more gold to get 3 VP? In other words, is the Sphinx's Support feature active when you are building it?
Thank you. And what about production buildings + Slaver? Let's say Slaver is in play and I only have 2 pieces of Stone. I build the pyramid. Can I use the gold given by the pyramid to get 2 Victory Points or should I have that piece of gold before building the pyramid to use the feature given by the slavers?