Matheu_DeWitt
I already commented what abilities I want in the following chapter but a thought occurs. If truth is ingrained into his being I can think of two things that would help him in the long run. It would be interesting to make it become his source similar to that of the abilities of Anos Volidoad whose source is destruction. Allow with the source of truth would simply embody all that exist and so long as there are states of being or things that exist he can't truly die. The other thing I can think of is for him to pursue Ideals and make it a part of himself with Ideals he would strive to become a better version of himself and with truth it would actualize and become real. But these are my crazy thoughts it'd be cool to see if you could implement these somehow they could be useful as 40k gets really crazy and you need power to survive