Cleon
Legend
Yeah, I like that pretty well. Making Cha odd and Con even is fine, too.
I think we might as well keep the Sin-Eating Affliction Table for the sake of legacy and clarity.
Okay, so we've got something along these lines:
Whenever an ovinaur completes a sin-eating ceremony it gains corruption points equal to the HD or level of the evil creature whose sins it absorbed. These corruption points are cumulative.
Each time the ovinaur eats sins, it must compare its current corruption total to its own Hit Dice on the Sin Ratio Table and roll the indicated affliction dice. The ovinaur receives an affliction penalty from that sin-eating equal to half the affliction dice result rounded up. If the affliction dice result is an odd number the penalty applies to Charisma, if it is an even number the penalty applies to Constitution. The affliction penalty can also be determined by looking up the affliction dice roll result on the Sin-Eating Affliction Table.
Affliction penalties are not cumulative but Con and Cha penalties are counted separately. For example, an ovinaur with a –3 Cha affliction penalty that rolls a –2 Cha penalty stays at a –3 Cha penalty, but if it rolled a –2 Con penalty it would now have both –3 Cha and –2 Con penalties.
Sin Ratio Table
Sin Ratio* .Affliction Dice . Purification DC
up to 0.25 . . . .1d3 . . . . . . DC XX
up to 0.5 . . . . 1d4+1 . . . . . DC XX
up to 0.75 . . . .1d6+1 . . . . . DC XX
up to 1.0 . . . . 1d6+2 . . . . . DC XX
up to 1.5 . . . . 1d8+2 . . . . . DC XX
up to 2.0 . . . .1d10+2 . . . . . DC XX
up to 2.5 . . . .1d12+3 . . . . . DC XX
up to 3.0 . . . . 2d6+4 . . . . . DC XX
up to 4.0 . . . . 2d6+6 . . . . . DC XX
more than 4.0 . . 2d6+8 . . . . . DC XX
Hmm… I'm thinking maybe we can tweak the Affliction dice a bit so they all give uniformly odd & even results:
Sin Ratio Table
Sin Ratio* .Affliction Dice . Purification DC
up to 0.25 . . . .1d2 . . . . . . DC XX
up to 0.5 . . . . 1d4 . . . . . . DC XX
up to 0.75 . . . .1d6 . . . . . . DC XX
up to 1.0 . . . . 1d6+2 . . . . . DC XX
up to 1.5 . . . . 1d8+2 . . . . . DC XX
up to 2.0 . . . .1d10+2 . . . . . DC XX
up to 2.5 . . . .1d12+2 . . . . . DC XX
up to 3.0 . . . .1d12+4 . . . . . DC XX
up to 4.0 . . . .1d12+6 . . . . . DC XX
more than 4.0 . .1d12+8 . . . . . DC XX
If nothing else, the above give a bit more love to the neglected dodecahedron.
I think we still need to set the Purification DC for the Wis check at the end of the ritual. What about starting at DC 11 on the top line and increasing by 1 per line to DC 20 at the end?
We'd agreed earlier on base of 10 and +2 per line, which would have put it up to DC 28 at the end.
That does seem a bit high. Contrariwise DC 20 seems slightly too easy - that's a 10% chance of success for an average Wis 12 Ovinaur at maxxed-out corruption, and such a creature is likely to be loading up on bonuses to give itself better odds.
How about we aim for particular start- and end-DCs and back-figure the DCs from there? I'm leaning towards starting about 8-10 and ending at 22-24. Here are some possibilities:
Sin . . . . . . . Affliction . . Purification
Ratio . . . . . . Dice . Range . DC#1 DC#2 DC#3
up to 0.25 . . . .1d3 . . 1-3 . . 10 . 10 .. 8
up to 0.5 . . . . 1d4+1 . 2-5 . . 12 . 12 . 10
up to 0.75 . . . .1d6+1 . 2-7 . . 14 . 14 . 12
up to 1.0 . . . . 1d6+2 . 3-8 . . 16 . 16 . 14
up to 1.5 . . . . 1d8+2 . 3-10. . 17 . 17 . 15
up to 2.0 . . . .1d10+2 . 3-12. . 18 . 18 . 16
up to 2.5 . . . .1d12+3 . 4-15. . 19 . 19 . 17
up to 3.0 . . . . 2d6+4 . 6-16. . 20 . 20 . 18
up to 4.0 . . . . 2d6+6 . 8-18. . 21 . 22 . 20
more than 4.0 . . 2d6+8 .10-20. . 22 . 24 . 22
I'm leaning towards #1 or #2.
And that just leaves the undeath part. I still have a slight preference toward corporeal only, but it's not a big deal. I do think sticking to template undead might make the table work a bit better, in that then the strength of the undead is influenced both by the ovinaur's HD and the sin ratio.
I'd prefer to include a wide range of undead since the original text set no limitations to what deathless horror a sin-eaten ovinaur can return as.
If we're using template-only and stick to the SRD that gives us very few undead to pick from. Four to be precise: Ghost, Vampire, Skeleton & Zombie - and one of those is incorporeal!
Going strictly by the rules it can't be a Ghost or Vampire, because those templates don't work on Outsiders - that'd only leave us Skeleton & Zombie! Since we want to include intelligent undead we'll need to add a note that Sin-Eating Undead are a special case.