Spelling mistakes and copy-&-paste errors can make for cute RAW (rules as written) rulings in Warhammer 40K. Here’s one to not try at your friendly neighborhood game store: the Khorne Psyker Daemon Prince!
#1 – Chaos Daemons Daemon Prince RAW
Here is the Daemon Prince entry from the Army List presented in the 6th Edition Chaos Daemons Codex for Warhammer 40K (without point-values). If you have the book, you’ll find it on page 93.
As you can see, Daemon Princes have the option of purchasing one or more Psyker Mastery Levels, as long as they do not have the Mark of Khorne (!).
Evidently, it’s a little copy-&-paste from the recent 6th Edition Chaos Space Marines Codex. Why? Because there is no such thing as a “Mark of Khorne” in the Chaos Daemons Codex.
Indeed, a Daemon Prince from the Chaos Daemons Codex and upgraded to be a “Daemon of Khorne” (a rule defined in the Chaos Daemons Codex) is blissfully free of any “Mark of Khorne”.
As a consequence – RAW – he doesn’t fall under the restriction spelled out in this Army List entry and is free to purchase one or more Master Levels as a Psyker.
As there is no Khorne-specific discipline, our Khorne Psyker Prince will generate powers from the Biomancy, Telepathy and Telekinesis disciplines.
#2 – Don’t Try This At Your Local Club
Of course you shouldn’t.
Quite the opposite. It’s a pretty clear example of why “RAW” is a fools errant even at the best of times (and this isn’t one of them).
Still, part of my has to laugh at the idea of Khorne’s Psyker-phopia being only an expression of his repressed longing for all things magic and sparkly, with Khorne Daemon Princes delightfully casting a glamour over their collection of blood-stained skulls when noone is looking.
Unfortunately, it’s not gonna last beyond the next FAQ I would think.