If you are looking at the PDF for actual gameplay today, you are likely playing a "Classic" or "Oldhammer" format (4th or 5th Edition). In that context, the rules were transformative.
Access to "Great Waaagh!" traits means your Warbosses can provide buffs usually reserved for Ghazghkull himself, making your entire frontline terrifying. 3. Narrative Power If you are looking at the PDF for
: Learn the origin story of Ghazghkull, his survival of a bolter shell to the head, and his subsequent "visionary" transformation under Mad Doc Grotznik. If you are looking at the PDF for