I's niver missspilt aneethin

nee meither

My spelling and grammar are purrfect.

My sprawling and grimoire need no supplementation.

I bee allwise sin tactical

Do grimoires have supplements? Like extra credit spells? Or lists of demons? Or spirits?

That is the lesser key question...

There is an appendix which retains the essence of all that is possible or otherwise from which the entire volume of spells can be reinoculated, similar in function to our vermiform appendix.

That requires the judgement of Solomon.

...and the rusty razor of a parsimonious Occam.

Meeny geegles here…