"We've only a few magical healers and one of them heals via spit." Herbert isn't even entering Strange's thoughts as he describes the medical team. Yes, he does appreciate the fact that there's someone who knows anatomy, but how useful could that be if there was something like the Hunt, where so many people ended up hurt at once?

Still, he listens to Foster's rambling with a little frown, putting a hand to his chin in thought. Strange's method of doing magic was 'make it all up and hope for the best.' This might not be applicable here.

"Well why not take something that's already done, copy it, then add a few revisions? You can go off of it from there, but at least you'll have a baseline that you know works."