YMMV / Black Crusade

• Audience-Alienating Premise: Black Crusade is very well designed for what it is, but evil campaigns and interparty conflict are hard to deal with, requiring a good DM and a mature group of players who won't hold grudges in Real Life. Add in the divide between Chaos Marines and mortal heretics, one of which is useless at anything requiring subtlety and the other comparatively useless at combat, and you have a system that is incredibly hard to run as intended.
• Moment of Awesome: Ax'Senaea the Thrice-Possessed, the Executis Primaris of Laodomida and the sample Daemon Prince, has a background that just screams awesome. In short, this was a woman who so refined her willpower that she was convinced by a sorcerer she could "reverse" a case of Demonic Possession, allowing her to leech off of the daemon's energy to sustain herself (and her beauty) instead of being consumed. She promptly did so... and, to the sorcerer's surprise, she actually succeeded. Over the course of decades, the daemon trapped inside her soul was painfully drained of power, unable to lift a finger, until she sucked it dry and cast it back into the Warp. Then, as her name suggests, she did it twice more, and digested the next two. This is an awesome moment in itself; whilst some similar cases of symbiotic or human-controlled daemonic possessions get mentioned, it's generally accepted that possession is a Fate Worse than Death, that leads to the inevitable destruction of the human as their mind is snuffed out and their body becomes a tool. But that's not where Ax'Senaea's awesomeness ends: Those three Daemons that she captured in this way? They're all Keepers of Secrets. That's right, the biggest, baddest daemons Slaanesh has in hir army; monsters so terrible that most people lose their souls just looking at them. And it wasn't a fluke; she basically beat down and ate three Eldritch Abominations through the raw power of her own ego. She was about to go for number four when Slaanesh hirself showed up and turned her into a Daemon Prince out of a combination of sheer interest in her skills, to make her stop lunching on hir greater daemons, and as a huge "fuck you" to hir greater daemons for not being able to stop her.

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