I played a 20 men tournament last weekend with the Eternal conflagrations list with Fatemaster and went 2-1 but should be 3-0 without a huge miss play and miss counting...
anyway this list is very competitive but lack of fun and strategy. If you have a double turn with your flamers shooting it is over.
Working now on others lists, I was wondering how it works when taking slaves to darkness units...I saw very interesting starting point from @Gwendar but what about chaos warriors? Do they have the benefit of Tzeentch mark (reroll save 1) when being close to a tzeentch hero? In addition they could receive the ability from the sorcerer...
about be’lakor, you cannot give him a tzeentch spell right?