Is there anything they could do to give him a soul, just so they can get that soul when he dies, ending in a positive net-result of divine soul-fuel for them?

I know of no feat, power, or magic listed in 3.5 or 3.0 that will "create" a soul. There are things that can transfer a soul from one vessel to another but those are out in this situation.

Apart from intervention by some deity, your best bet would be a Wish (or other Wish like magic). Some may argue that even a Wish will not create a soul. Maybe yes, maybe no. I'm not going to debate that. You can look at this as a "cure" type wish or spin it as "resurrection-ish" like wish or maybe even as "undo misfortune" in that some awful cosmic accident or joke lead to this soulless state. However you spin it, I think that within the scope of what's defined in 3.5/3.0 Wish is about the best you do.

Outside of that, I think story driven solutions are in order. A quest! In this case "the demons of the chaotic-evil afterlife" are looking for a way to give the PC a soul so they can later take it. The irony is not lost on me. Still, the story of it all could be great fun.

Is there anything they could do to give him a soul, just so they can get that soul when he dies, ending in a positive net-result of divine soul-fuel for them?

I know of no feat, power, or magic listed in 3.5 or 3.0 that will "create" a soul. There are things that can transfer a soul from one vessel to another but those are out in this situation.

Apart from intervention by some deity, your best bet would be a Wish (or other Wish like magic). Some may argue that even a Wish will not create a soul. Maybe yes, maybe no. I'm not going to debate that. You can look at this as a "cure" type wish or spin it as "resurrection-ish" like wish or maybe even as "undo misfortune" in that some awful cosmic accident or joke lead to this soulless state. However you spin it, I think that within the scope of what's defined in 3.5/3.0 Wish is about the best you can do.

Outside of that, I think story driven solutions are in order. A quest! In this case "the demons of the chaotic-evil afterlife" are looking for a way to give the PC a soul so they can later take it. The irony is not lost on me. Still, the story of it all could be great fun.

Is there anything they could do to give him a soul, just so they can get that soul when he dies, ending in a positive net-result of divine soul-fuel for them?

I know of no feat, power, or magic listed in 3.5 or 3.0 that will "create" a soul. There are things that can transfer a soul from one vessel to another but those are out in this situation.

My understanding/use of Hollow was as a role-play aid in the Ravenloft world which made a character easier to sway to dark and evil acts. True, there were tangible benefits as well. Still, in my view, it was more a matter of flavor for stories and unique to Ravenloft.

I am sorry to say that apart from intervention by some deity, your best bet would be a Wish (or other Wish like magic). Some may argue that even a Wish will not create a soul. Maybe yes, maybe no. I'm not going to debate that. You can look at this as a "cure" type wish or spin it as "resurrection-ish" like wish or maybe even as "undo misfortune" in that some awful cosmic accident or joke lead to this soulless state. However you spin it, I think that within the scope of what's defined in 3.5/3.0 Wish is about the best you do.

Outside of that, I think story driven solutions are in order. A quest! In this case "the demons of the chaotic-evil afterlife" are looking for a way to give the PC a soul so they can later take it. The irony is not lost on me. Still, the story of it all could be great fun.

Is there anything they could do to give him a soul, just so they can get that soul when he dies, ending in a positive net-result of divine soul-fuel for them?

I know of no feat, power, or magic listed in 3.5 or 3.0 that will "create" a soul. There are things that can transfer a soul from one vessel to another but those are out in this situation.

Apart from intervention by some deity, your best bet would be a Wish (or other Wish like magic). Some may argue that even a Wish will not create a soul. Maybe yes, maybe no. I'm not going to debate that. You can look at this as a "cure" type wish or spin it as "resurrection-ish" like wish or maybe even as "undo misfortune" in that some awful cosmic accident or joke lead to this soulless state. However you spin it, I think that within the scope of what's defined in 3.5/3.0 Wish is about the best you do.

Outside of that, I think story driven solutions are in order. A quest! In this case "the demons of the chaotic-evil afterlife" are looking for a way to give the PC a soul so they can later take it. The irony is not lost on me. Still, the story of it all could be great fun.