Here's a question for you. I'm running Kharn the Betrayer as one of my HQ choices. He's a nasty Khorne guy who really doesn't mind from where the blood flows -- just so long as it flows. In close combat there's a chance he'll hit his own allies.
Mindshackle scarabs in the new necron rules are an interesting entry. Fail a Ld test on 3d6 and the enemy strikes their own allies. How does this interact with "the Betrayer" rule? It is stated that the scarabs can use all the "bonuses" the model already has -- is "the Betrayer" rule a bonus?
The rules as written and common sense say that all of Kharn's attacks go against his allies if he's affected by the scarabs. But ... could "the Betrayer" rule simply get inverted?