[Update]: Total War: Warhammer 2's next DLC, The Hunter & The Beast, will be greatly improving the Empire faction, as well as adding some lovely new units for the Lizardmen!
Total War: Warhammer 2's recent The Prophet and the Warlock DLC brought in two new factions to play around with, as well as a whole bunch of new units. While certainly fun to use, some of these new units and abilities were so ridiculously overpowered that the AI would simply roll over dead every time you met it. This goes doubly so for the new Skaven faction as surprise, surprise, the Empire armies aren't exactly capable of dealing with a nuclear missile!
In order to correct these balance problems, as well as fix some of the newer bugs, Creative Assembly has now released The Amethyst Update. The Skaven and Lizardmen armies have received some much-needed nerfs, the Invocation of Nehek spell has once again been weakened, while the Beastmen Cygor and Giant units have finally got some nice damage buffs to help compensate for their size.
Besides the various bug fixes and balance changes, this update has also added a brand new Wizard for the Empire - the titular Amethyst Wizard. As you would expect from someone that wields the winds of death, the Amethyst Wizard is capable of sapping the very life from his enemies, as well as greatly diminishing the morale of any that dare stand before him. Nothing exactly new in terms of spells, but having yet another school of magic available to the Empire is certainly a welcome sight!
You can find the full patch notes, as well as read more about this whole update, over at the official website.