--Removed the Wyrmslayer Hex Aura, and replaced it with the Karaghul vanilla ability.
--Added the "Rune Axe of Gotrek" ability to Grimnir's Axe Weapon.
--Removed Blade Shield and replaced it with a new ability called "Fearsome Reputation" which decreases enemy leadership in the province by 3/6/9.
--Can be recruited by Grombindal.

Regarding Cathay and Kislev:
This hero unit is classified as a "Champion" type agent. Currently, Kislev and Cathay do not have Champion heroes. Patriarchs are considered to be "Dignitary", Frost Maidens and Astromancers are "Wizard", and Alchemists are "Engineer". I think this is causing some issues. If someone knows how to get around this without rebuilding a bunch of stuff for a different style of hero, I'm all ears. Otherwise, I am content to wait until Cathay and Kislev get "Champion" heroes of their own.

Dwarf Runes are now usable. As a side effect, other factions can now slap Arcane Items on the unit. Enjoy!