[@ELGainsborough]
On a minor note; you mentioned my armour as part of your information to me, but just keep in mind that Abel is (as mentioned in my character sheet) not particularly even wearing armour at all, at least not in the sense that your character is. The main reason he even learns defensive magic is to compensate for his very lightweight gear, so he really only has an equivalent of armour on while that spell is active (hence why he used it first). I thought I'd also mention that while we've established a rough estimate of how long it takes for him to cast magic, I've yet to work out how long the spells would remain active for.

I might've lost a little bit of work on my notes (for my own project), so there's some delays on my end, but I'm working on the post.