A practitioner asks: “Source Creator, we request assistance of Creator and all beings in the light who possess the talent and desire to collaborate with Creator, to construct a prophetic dream/vision/message to aid in the raising up of all physical soul-based beings in the Free Will Galaxy, all Spirit meddlers in earth plane, and all of the fallen angels in rehabilitation and elsewhere.” Is this appropriate and effective?

This is both appropriate and effective. You can ask for these things to be done and they will be addressed in ways highest and best, and to the extent people are ready and in alignment will determine the outcomes and effectiveness of what you are wanting to see happen.