[DrPraetorious]

A few suggestions:
The Lord of the End Times is at strong variance withe existing pretender chassis, making him difficult to balance.
I suggest lowering his magic to FSB, his cost to 150 pts., his dominion strength to 3, and his new path cost to 40.
A quick glance at your magic and it appears roughly comparable to MA Marignon.

- I assume that all of the natural prot-23 stuff represents chaos armor. Add "Chaos Armor" as an armor, and put it on them, instead.
- Having a "Dark Citadel" as your capital sounds thematic but is a huge disadvantage, and possibly a good part of the reason the position seems weak. Give them an admin-40 fort instead, maybe a regular Citadel.
- The warhound has to cost at least 4 gold. It could be a freespawn from some other unit, but 1/1 is unbalancing because of what it lets you do to your tax rates and blood hunting.
- The "Flail" is a two-handed weapon, the weapon you want would be closer to a morningstar.
- Even given that he's got 3 hands (cause of the flail), the Nurgle Chaos Warrior is too expensive - compare to the Emerald Guard. The other chaos warriors likewise.
- Likewise, the Chaos Knight is only marginally more elite than a conventional knight.
- Now, the *chosen* chaos knight legitimately costs 120 gold. Likewise the other chosen, although I think they could stand to have additional magic powers.

My suggestion -
* Give all of the "of Khorne" units Berserkers, even the little warriors. Bigger berserk as they rise in rank.
* Make all of the "of Nurgle" units Undead. This makes them all immune to disease. Now give the more elite ones a disease cloud.
* The Chosen should have a higher MR. The MR bonus for the Tzeentch types should be larger (+3 or more.) The Lord of Tzeentch should absolutely be MR 18 - one of the few units that could justify MR 20.
* Give all of the "of Slaanesh" a huge morale boost - and give the chosen ones Awe +1.

The Champions are too expensive. Compare them to the Jotun Herse. With the exception of the mage-lord of Tzeentch, the lords are too expensive as well.

In general, my suggestions would be to balance this nation against MA Jotunheim for the commanders, who are all so buff they count as giants, and MA Marignon for the military.

So I think you did overdo it nerfing your position.