[@Jbcool] No, he most certainly is a glass cannon. You'll notice, no one has actually yet attacked him. What damage has been done to him was entirely 'self' inflicted.

As for his versatility... well, in a canon where one of the most advanced races in the entire galaxy relies almost exclusively on psykers for literally everything, yes, a psyker is a pretty versatile thing to have around. It's like a wizard in D&D. Look through the things arcane magic can do sometime, you'll find 'almost anything' basically describes it.

Also, he's not a navigator unless we're in the warp. Even then, he's not great at it. Like with pretty much anything else, he's an ork. Capable, but not ideal. Which brings me to why I've not suggested he mind-control someone... he can't do that. The extent of his telepathy amounts to various levels of screaming into other people's brains. In this case, volume determines if it's only unpleasant, or lethal.

Oh, and in case you forgot, the ordo xenos Is after him. Or did you forget the high lord inquisitor that's currently hunting him? You know, the one that sent a literal army to go after him. Another ordo's army, mind, so a high lord of some higher than average level of standing at that. The reason the Entire ordo xenos isn't after him is because the Milky Way is a big place, and there are a lot more xeno threats to deal with than one ork.

All this brings me to my final point. The only complaint you've made so far about my character that holds water is that he's an ork devoted to 'chaos.' If he were a thousand sons' sorcerer, he'd be fully capable of all of this, be just as capable in melee combat, be even harder to kill, and as a psyker he'd be even better as he'd be far more precise. So, if you're really so dead set on my character being more lore-abiding, then I can switch to a standard chaos-marine sorcerer once we get outside of your null ship.