In the “Grimoire Page: Basic Elements of a Spell” it straight out lists blood as a conduit. What are the implications of this? I don’t think it’s been mentioned anywhere in the main story, but it makes me wonder what parts of the body can’t you channel through. If you have a lump of flesh and cast through it, does it rapidly mutate into an aberrant? What about casting through a mundane creature? Can someone, who’s very careful, cast through their own blood as a conduit? Or do I just have to fill a small pool with blood to get a super high capacity conduit?
Kiernan’s lips twisted, sending his bushy mustache sweeping to the side like a broom. “Well, the Crowns’ most loyal thaumaturges and a select group here at the University have been working on creating ultra-pure artificial gemstones, blood gems from compressed magical beast blood, and any way that we might re-constitute shattered celerium into a whole once more. That, along with more arcane attempts to imbue objects with greater channeling capability. But just as in the thousands of years before this, none have come up with anything that can stand beside celerium. None except Myrddin,” he corrected quickly.
It’s unclear why exactly it doesn’t work as well as celerium, but they’re certainly attempting to make use of it.
My guess is that, uncompressed, you would be looking at at least largish fish tank volumes, which would be quite inconvenient to try to carry around with you, even if that wouldn’t get branded you as a blood magic user and executed.
I am thinking Null’s are conduits in some military applications, so no need to carry around a fish tank. I can’t imagine what would happen if they fail. The Red Guard doesn’t ban blood magic: they fight Aberrants. This could be another situation where Nulls could be conduits.
^ This was my guess as well. Nearly unlimited conduit power, perhaps?
Additionally, if anyone snaps, you have a person on the ground who won’t go down and isn’t highly affected by magic - so they can fireball it immediately, and hopefully won’t have any anomalous effects later on. We know S is a Naught and can literally, physically touch Aberrants with very little repercussions.