Order of operations?
Sayaka is our anti-magic provider, and must keep that role until we have got the enchanted restraint fabbed. I would like to see no attempt made until after that happens, and that attempt is pre-empted by the decision to be Witchbombed talk. Is copying talk happening in the current update? I hear you, Onmur.
As long as we have Yuki's help, the physical isolation of an inanimate gem is probably reliable. Given a sturdy container, such as a screw-top metal jar, she could bury and retrieve it any number of times. More to the point, we need to inspect to see if Rionna is accumulating Grief quickly or slowly. Freeing the Shades may reduce the corruption rate?
Rionna's reaction when we revive her
Once she understands the thing that has happened to her, what do you think Rionna's emotions will be?
In all likelihood, will we be too busy pumping Grief and blocking her witchout to have complex reactions? Gonna need professional help, and mind powers on deck to do as the good doctor asks of us.
[X] Try to get a Shade viewing enchantment running, or ask Sayaka to split and try her visual powers in passive mode.
[X] Get a container to form the anti-magic box enchantment
[X] Investigate Rionna's personal items, including cider. Store for later.
[X] Go to the Kures for box enchantment.
[X] Brainstorm to determine security placed on Rionna's Soul Gem.
-[X] Measure the rate of Grief accumulation in the Gem.
[X] Plans for travel to Yuki, and vent session after.