pming
Legend
Hiya!
Sounds more like a Player problem than a Plot problem... but anyway...
What I'd do: Give him everything he wants. That's what evil does. Mind you, if he accepts it all, he's royally and demonically ...er... "kerfluffled". At some point in the PC's "seeking of aid from others to directly confront Orcus", Orcus will hear of it. I mean, he's a Demon Lord. He's paranoid, crafty, and devious. Then, when the PC finally "surprised Orcus and defeats him on his home plane", the PC finds he is free...but with all the kewl-pwerz he so desires. ... ...And this is where it gets 'bad' for the PC...
Orcus has been secretly 'tracking down' all of the PC's relatives that were sacrificed to him. He then turns every one of them into some powerful, evil-as-sin intelligent Undead, fueled by unyielding hatred for the PC who has managed to use their deaths for his own gain AND get away scott free! Of course, each of these new undead foes will be using their former wealth/power of their family (the PC's family..!!) to completely destroy the PC's life, as well as all the lives of those around him. They will make sure that the "family name" is spoken in infamy. Holy undead-slayers, paladins, clerics, and everyday adventurers will constantly be tracking down the PC and trying to end him. The PC's life from then on out will amount to hiding in dingy hovels, travelling under cover of night, and generally doing everything in his power NOT to be noticed. So...yeah, sure, he's got all these nifty "kewl-pwerz" and all that...but if he uses them he will find himself engaged with all the good, righteous, or 'opportunistic' adventurers who want to put his evil deeds to rest.
The old saying: "Be careful what you wish for" is the basic jist of it.
If you really want to rub it in, have Orcus offer him a 'deal' that is far, FAR worse than what he had before (and make sure to play up the whole "...you didn't defeat me...I let you defeat me so I could teach you a lesson...have you learned your lesson yet, slave?"
^_^
Paul L. Ming
Sounds more like a Player problem than a Plot problem... but anyway...
What I'd do: Give him everything he wants. That's what evil does. Mind you, if he accepts it all, he's royally and demonically ...er... "kerfluffled". At some point in the PC's "seeking of aid from others to directly confront Orcus", Orcus will hear of it. I mean, he's a Demon Lord. He's paranoid, crafty, and devious. Then, when the PC finally "surprised Orcus and defeats him on his home plane", the PC finds he is free...but with all the kewl-pwerz he so desires. ... ...And this is where it gets 'bad' for the PC...

Orcus has been secretly 'tracking down' all of the PC's relatives that were sacrificed to him. He then turns every one of them into some powerful, evil-as-sin intelligent Undead, fueled by unyielding hatred for the PC who has managed to use their deaths for his own gain AND get away scott free! Of course, each of these new undead foes will be using their former wealth/power of their family (the PC's family..!!) to completely destroy the PC's life, as well as all the lives of those around him. They will make sure that the "family name" is spoken in infamy. Holy undead-slayers, paladins, clerics, and everyday adventurers will constantly be tracking down the PC and trying to end him. The PC's life from then on out will amount to hiding in dingy hovels, travelling under cover of night, and generally doing everything in his power NOT to be noticed. So...yeah, sure, he's got all these nifty "kewl-pwerz" and all that...but if he uses them he will find himself engaged with all the good, righteous, or 'opportunistic' adventurers who want to put his evil deeds to rest.
The old saying: "Be careful what you wish for" is the basic jist of it.

^_^
Paul L. Ming