For a card like Prosperity that gains materials per y/z icon, do you count both the y and z icons or choose one?

Question

Accepted Answer

Count all the y and z icons together and gain x for each, treating '/' as inclusive. This text describes a trigger on gaining materials from y/z cards in play, which is not the Gain keyword itself.

Imperium: Horizons

For a card like Prosperity that gains materials per y/z icon, do you count both the y and z icons or choose one?

Imperium: Horizons

For a card like Prosperity that gains materials per y/z icon, do you count both the y and z icons or choose one?