When you perform the ritual of prophecy, say whose future you wish to scry and offer up
something linked to them, roll.
On a 10+, the player of the subject will ask you 3 questions, tell them what you see.
On a 7-9, you ask the subject 3 questions, and they will tell you what you see.
If you act to bring the Prophecy to pass, you have Advantage. If you act to stop the Prophecy, you have Disadvantage.
Who do I see my subject with?
What do I see my subject doing?
What is my subject feeling?
What danger, challenge, or misery do I see my subject facing?
What fortune do I see my subject enjoying?