Chaos anon here
Work is progressing well, I'm up to Book of Slaanesh now, will probably be done with the CSM codex today and move on to the supplements
There are a few things I have questions about though

1. Should I include generic minor psychic powers list?

2. Daemonic Gifts part says
>only Lords close to being Daemon Princes will have several such powers
I'm guessing it's just fluff and doesn't actually mean that only Chaos Lods can have more than one, since the Limits section says that
>Other characters may spend 75 pts, up to 50 pts of which may be Daemonic Gifts.
But just wanted to make sure

3. The Chaos Lieutenant is listed as Chaos Champion in the summary list. Also the Daemonic Rune says
>The Chaos Champion has been gifted with a Daemonic Rune
Does that mean it's Champion/Lieutenant only, or just fluff again? Also, should he be Lieutenant, or Champion?

4. Collar of Khorne text says that psychic abilities that target the wearer or include him in their area of effect are nullified and will not work on a D6 roll of 2+.
Are the are of effect ones nullified just for the wearer, or in totality, including for other targets?

5. Juggernaut text says that its ability to trample enemies underfoot confers the Daemonic Mutation ability.
Try as I might, I couldn't find any rules for trampling. Is it just fluff and the Juggernaut just gives Daemonic Mutation normally, or have I missed something?

6. Nurgle power Aura of Decay says "will apply to all friendly troops"
Does this mean Troops choices, or all units? I don't think units are referred as troops anywhere else in the codex.