Possibly, but s/he’d have to find them first, and that assumes that they can’t just take that power back as soon as they find out what s/he’s up to.
No, they’re already back on the Lower Planes, in the place s/he’d be banishing them to.
With his raw power? Mebbe. But they’re the types spells can just bounce off of, too. Now, he’s got a high enough caster level to burn through that… probably… but I’d really want a whole party.
Nah, Roy bought their lie. Aaah, Bluff skill, is there anything you can’t make happen ?
He probably could at that, but it wouldn’t matter. Nothing really dies in the multiverse. Killing a demon, or devil, or daemon just sends its soul back for reincarnation in whatever plane it came from. Banishment does the same, only without the physical pain before that :p. They need some time to regain their powers and body, but unless you seal them or something, they always come back. I do wonder what happens if you kill a planar entity in its home plane though.
As for the specifics of the soul splice, and what would happen if V died without anyone to collect, well, it’s something Rich made up from scratch, there’s nothing like that in the official D&D rules. So, just like Xykon’s Cloister spell, the specifics are a mystery. Or to be more precise, the specifics are 100% plot-dependant 
Roy really should take a few ranks in sense motive one of these days. 
I’m not entirely sure he bought it. Roy is surprisingly intelligent.
I thought resurrected beings didn’t remember their time in the afterlife. Or is my imagination acting up again?
In D&D, you can attempt to kill absolutely anything, even the gods. But we don’t know how powerful the fiends are, and a good guess would be “extremely”. They also surely thought through all the ramifications of their deal, and they’re definitely not stupid, so I think it’s safe to say that they’re either sufficiently powerful that even a triple-spliced mortal spellcaster can’t faze them, or that they built in some sort of precaution into the splices to make it impossible to use their power against them.
I thought 3E eliminated the god killing by anything other than plot effects. So no more teleporting to Valhalla, beating up Thor, and taking his hammer. Or saying “Hastur Hastur Hastur” and fighting the
<golf clap>
Nah, think of it this way, either way, they win. Fiends don’t die too well, and even if they do they still can be resurrected by various means (though I think it’s a little more complex for non-mortal races). If V tried to back out of the deal by killing them, well, that’s yet another alignment shift towards evil (to clarify, while weaseling out of a contract may make one chaotic, doing it by killing your debtors will probably make you evil nine times out of ten).
I’m not aware of anything like that.
On another note, what level is Durkon? I’d assume not high enough to cast 9th level spells considering they could have just used True Resurrection and saved themselves some trouble with lugging around a body (they can foot that bill, they had more than enough gold with them), but I’m not sure.
V can cast 7th level spells, which would make him at least 13th level, I think. So Durkon is probably at a similar level.
The best estimate is that Roy is level 13 going on 12, and that everyone else in the party is 14. Everyone was known to have been level 13 as of the start of the Battle of Azure City, and Vaarsuvius (without the splices) is known to now be exactly 14. So Durkon has 7th level spells like Resurrection, but not any 8th or higher.
Nope. Deities & Demigods had a 3e version, which details how to stat up gods, with an eye to them being Epic Level antagonists. Although the Lovecraftian Mythos was not added back in, so they didn’t intend you to be teleporting to Carcosa and beating up him.
… of course, looks like that bit of news may be too late for you. Who knew it would work typing it three times?
You can. Killing a creature that is on the material plane via summoning magic or an Astral Projection spell just sends it back home, but under any other circumstances killing a fiend is just as lethal as killing anyone else.
Well, time for some speculation.
So. There’s a soul floating around, the unbound soul of an extremely powerful necromancer (Haera). I’m guessing she’s looking for another caster to hook up with. Let’s see, might she decide to settle down with a certain evil theurge we’ve met before? If so, it’ll be a damn sight harder for V to just waltz over and defeat Xykon once and for all… anyway, I’m just guessing here, but it seems like a good possibility to me.
I am reasonably sure that said theurge hooking up with Haera would involve her promoting herself from minion to Necrotic Empress With Sexy Bony Consort, and enforce her consort’s good behavior with Heightened Command Undead.
Which is to say : not lethal at all. Roy died and just went on to the Lawful Good plane - but he’s still there, he just moved on to another state of being. And he can be resurrected, wished back, whatev. I assume the same is true of planars, although the actual mechanics are a lot more vague AFAIK.
The dead-on-own-plane planars might end up in Sigil, or on a lower strata of the same plane, or in the countless pocket planes, half-planes, side-planes… I have no idea, and it’s not detailed in any of the (admittedly few) D&D and Planescape sourcebooks I’ve read.
ETA :
Yes he is… for a Fighter. Who doesn’t have Sense Motive as a class skill ;). And IIRC, SM is based off Wisdom anyway, not Intelligence.
Afraid not.
An Outsider who gets killed, anywhere, is dead without some extremely powerful magic; Wish or True Resurrection, basically. (There are also a few spells in the Spell Compendium that will do it.)
Back in pre - 3E days, a fiend could only be permanently killed on its home plane; that is no longer true.
Actually, he’s apprently even smarter in raw intelligence than Varsuuvius.
Anyway, brining the subject back I was curious if Miko wil ever show up again. SHe was originally intended to be a recurring antagonist, not exactly good or evil, who would (meaning the very best in her obsessive/psychotic Paladiny way) hound the OotS again and again. However, people were so upset and went so wild over her appearance that Berlew may have killed her off permanently. I find that a shame, because even if you don’t like her, she’s an interesting character. I certainly hope she shows up again. I’d rather like to see how she’d play off having to work alongside Belkar and currently-wicked-Varsuuvius. That’s be hilarious. (Can I be sympathetic to her and also want to see her forehead veins pop like fireworks? :D)
Yes, but consider the implications : I’ll grant you that a Wish can do anything anyhow, but a Resurrected outsider’s soul has to be brought back from somewhere, doesn’t it ?
Miko’s not coming back, ever.
Her post bisectomy strips made it pretty clear, as they harped on every one of the hundred of Miko threads cluttering the forum at the time, and crashed them in flames. “She’s gonna be resurrected by the 12 gods after a last minute redemption”, “she’s gonna become a blackguard and ally with the Linear Guild”, “She’s going to be raised as a powerful undead by Xykon”, ad nauseam.
While those threads were somewhat annoying, I do think that for some reason Rich very much dislikes *all *the fanwank and speculation going on in his own forum - to me those 2 strips in particular were kind of spiteful.