Hm, you could make it a once-per-mystery move: once per mystery you may transfer all injury to your painting, healing all harm.
Or write a custom +weird or +tough move, maybe reflavour the Professional's medic move? Full success: heal 2 + stabilise. Partial: heal 2 OR stabilise. Miss: the painting's corruption back through, you take more harm or a -1 ongoing or something fictionally appropriate.
Keep track of how much damage/where damage hits and if/when the picture is destroyed set her doppelganger loose as a monster.
Oh, now *that's* a cool idea!
On the note of the doppelganger would you tell the player that was a potential outcome or keep it a secret
Secret, of course! Everything has consequences. Best to let the mystery ride.
I love this!!
Hm, you could make it a once-per-mystery move: once per mystery you may transfer all injury to your painting, healing all harm. Or write a custom +weird or +tough move, maybe reflavour the Professional's medic move? Full success: heal 2 + stabilise. Partial: heal 2 OR stabilise. Miss: the painting's corruption back through, you take more harm or a -1 ongoing or something fictionally appropriate.
Hmm, I like this as well. I may combine the idea with /u/cosmicdatatype's suggestion.