I was with a group of friends, hunting down a demon-creature. I was using naming-magic in an attempt bind the monster. We barely had it under control when a dark haired woman (likely inspired by Yennifer) portalled into the area we were in (I think it was a Stonehenge sort of place, but underground). At first I was relieved to see her (must have been an ally), but then she did something to release the creature from our mystical binding, causing the entire group to cry out.
However, when the beast moved to escape, the woman said an incantation and power seemed to flow from the creature and settle into a ring on her finger in the form of bluish script. Somehow, I knew that she had tied the creature's magical ability to fly to her ring, giving her or anyone used the ring the power of magical flight. I realized what she was doing and called out that it was too dangerous, but she continued anyway (a total Yennifer move), binding more of the creature's powers to different rings, each power appearing as a separate script in a different color. Somehow, I knew that the writing that formed was the name of the power trapped.
Finally, she tied the monster's life-essence to herself. However, instead of binding the power to a ring, the script appeared across her arm and chest as a tattoo. It was clear that this was a particularly dangerous method of gaining power. Although it had the benefit of not being able to be removed like the rings, it directly tied her life force to the creature in some way. I don't know what happened from there as I woke up just as the tattoo was being "written" like someone was signing their name.
Since Sunday morning, I have been trying to figure out where this idea came from as it seems really familiar to me. My attempts to look it up haven't produced any results. It seems like an interesting magic system to use in a future story.