Vetareh gives a very serious nod, looking a little pained. 'Very powerful' sounds to her like 'likely to be leveraged,' which does not sound like a very good time for Vanyel at all.
:Do you know of anything or anyone that might be able to help heal them faster? If not, the best idea I've got is trying to figure out how to enchant something to dupe my Blackout spell. But I know artificing (the making of objects that are consciously used by a person), not enchanting (the making of objects that are more isolated/made to respond to outside stimuli and make rudimentary decisions on their own), so I think it'd take me a while at best and be untenable at worst. Since if I just followed principles of artificing he'd need to (constantly have it mentally activated), which he couldn't do while asleep even if I did get it to work. Not to mention, trying to interface with a strange foreign magic thing will probably jostle his Gifts/magic at all, which would make artificing actively unhelpful. So I'd need to rederive enchanting complicated enough for an already complicated spell from first principles, which...: Would take decades if she were a genius, even with her understanding of the basic first principles and some of the later logic. Unfortunately Vetareh cannot just arbitrarily solve all problems put in front of her.