How hard is it to use this with BX/OSE/or other OSR ruleset? Is this pretty much paired with Knave? How does this work with new Knave 2e?
Sorry for quite late reply, but maybe future generations will have the same doubts :) monsters stats, the main "mechanical" part of the book, is meant and designed to be usable, or easily convertable, into any B/X adjacent / compatible rulese
