Mega congrats on the KS. Read thru the preview rules and love it so far. You nailed the “OSR-pastiche-via-PbtA-rules” better than DW RAW.
Can you clarify how spells work for magic-users with an example? I’m not clear on when you define parameters (upon inscribing to my book, each morning when I memorize, or per casting), and if those remain set presuming you don’t forget your spell when it’s cast. And is looting ancient grimoires in the course of adventuring the only way to add spells to your book (until you level up enough to take the spell research move)?