Thaas (Least) abilities:
Non-Legacy: +1 Composite Longbow - 2,400 gp
Least: +1 Evil Outsider Bane Composite (any Str) Longbow
- Bane is +1 - 6,000 gp
- Sense Demons (basically Detect Evil) - 1800 gp
- Strength Adjusting (effectively a Bow of the Wintermoon) - 1,000 gp
- Obstruct Summoning, lesser (Always on, half-strength Forbiddance?) - 16,500 gp
There doesn't seem to be a good model to use in attempting to price the Obstruct Summoning ability. The lesser version as a 60-foot radius field that causes all attempts by demons of 10 HD or less that use their summon ability to automatically fail in summoning any demons, wasting the ability. The best approximation of that is the spell Forbiddance, which creates a permanent, immobile 60-foot cube (can be up to one 60-ft cube per level, but each cube costs 1,500 gp) that blocks all inter-planar travel into or out of it, including summons. As an continuous effect of what would normally be a permanent spell, that costs Spell Level x CL x 2000 x 0.5 gp, or 6 x 11 x 1000 = 66,000. But it only affects summoning (halve the cost?), and only works on those 10 HD and less (halve it again?), so... 16,500?
It is mobile, and a larger area than one 60-foot cube, but whatever; that probably mitigates the fact the ability only affects demons, not other outsiders.
Extra ability total costs: 25,300 gp
Ritual Costs:
2,000 gp, and 4,660 xp
2,300 gp, and 4,600 xp
Sort of Edit: I just remembered Otiluke's Suppressing Field, which could nearly exactly duplicate the summon obstructing effect, limiting it only to Conjuration (Summoning) spells. However, OSF is only a 20-foot radius, and it allows a CL check to beat it and have your spell work anyway. A continuous item of Widened OSF would cost 7 x 13 x 2,000 x 1.5, or 273,000 gp... Yeah... I'll stick with the Forbiddance version of calculation.
The Least Legacy abilities of Thaas makes it a +1 Bane weapon (8400 gp), with 19,300 gp worth of fixed cost abilities added to it.
I'm at the point where the Paladin has awakened it, and will likely soon look to advance it further, to the Lesser Legacy level. So I best figure out its cost.
The abilities to be gained from levels 11 to 16 include:
(Note, by the book, Thaas is a double Bane weapon... which is dumb. By the rules, you can't double-stack Bane effects. Sometimes the writers are dumb. Once it becomes double-bane in the book, I'm just keeping it an Evil Bane weapon, but instead upping its base enhancement by +1)
Thaas gains +3 to its enhancement, becoming a +4 Evil Bane weapon, with the same 19,300 gp of fixed-cost abilities as before (whether you used the book statted double-bane, or you shift the second Bane to a flat enhancement, the costs are the same). So, an effectively (priced as) +5 weapon, plus 19,300 gp, plus the 400 gp for the base composite longbow. Total cost: 69,700 gp.
The difference in price from the Least Legacy level is only 42,000 gp.
Ritual Cost:
5,000 gp and 7,400 xp, or
4,000 gp and 7,600 xp
My party is finally nearing 17th level, so I need to hammer out the pricing of the last tier of abilities granted by Thaas.
The early fixed abilities have a fixed cost of 19,300 gp. That cost plus the basic weapon enhancements of the first tier of abilities totaled
25,300 gp.
The second tier of abilities, which was all basic enhancements (just me altering it to one
bane ability, and upping the base enhancement bonus up by +1) cost an additional
42,000 gp.
Using my enhancement alterations, the non-unique abilities at 20th level would make Thaas a
+4 Holy Evil Outsider Bane Composite Longbow. Such a weapon would price as a +7 Composite Longbow, or
98,400 gp.
Since Thaas' second tier of non-unique abilities was priced as a
+4 Evil Outsider Bane Composite Longbow (valued at
50,400 gp), plus 19,300 in unique abilities, the added cost that my party paladin will have to pay for to gain this third tier of abilities is 98,400 – 50,400 =
48,000 gpThe first of the unique abilities of Thaas' upper tier is an expansion of its previous Lesser Obstruct Summoning ability (which I priced earlier by halving the cost due to it only working on evil outsiders of 10 HD or less), so undoing that halving, and adding
16,500 gp back into the cost covers that ability. The other two abilities are both
Banishment and
Plane Shift each once per day with "a command word and a gesture."
Command Word effects cost (Spell level × caster level × 1,800 gp)/5 for a single use per day (the example item is even a single-use per day item, the Cloak of the Mountebank; despite the item having a CL of 9th listed, it calculates the Cloak of the Mountebank as CL 7th, the minimum to cast Dimension Door).
So, the two Command Word spell effects, based upon a Wizard casting those spells, should cost:
Banishment: (7 × 13 × 1,800 gp)/5 =
32,760 gpPlane Shift: (7 × 13 × 1,800 gp)/5 =
32,760 gpA cleric casting those spells would be a bit less (as they are 6th and 5th level spells, respectively), but using the higher Wizard casting for the pricing covers any underpricing that might have occurred for the absolute, no HD limit summoning lock-out.
Thus, the total added value of Thaas' Greater Legacy abilities over his Least and Lesser Legacy abilities is
130,020 gp.
130,020 / 11 = 11,820
Ritual Cost (Greater Legacy):
11,820 gp and 23,640 xp, or
12,000 gp and 23,604 xp, or
12,020 gp and 23,600 xp
Just a recap, here is the total pricing of Thaas' full abilities:
+4 Holy Evil Outsider Bane Composite Longbow - 98,400 gp
Thaas' unique special abilities were priced out this way:
- Sense Demons (basically Detect Evil) - 1800 gp
- Strength Adjusting (effectively a Bow of the Wintermoon) - 1,000 gp
- Obstruct Summoning, lesser (Always on, half-strength Forbiddance?) - 16,500 gp
- Obstruct Summoning (uncapped) (Always on, half-strength Forbiddance?) - 16,500 gp
- 1/day Command Word
Banishment - 32,760 gp
- 1/day Command Word
Plane Shift - 32,760 gp
Thaas' full cost, in gold pieces:
199,720 gp