This weapon is old and its creator is unknown, although it has been used by several famous heroes of Tyr's faith, including Fyrrian Spellstar of Hlondath (died approx. 327 DR), Drun Ironguard the Drannoran Exile (died estimated 700 DR), and Talisk Greenshield of Waterdeep (died 1235 DR). After Talisk's death the sword disappeared and has not been seen since, although it is rumored that a half-orc in the North has either been searching for or has found the weapon.
In addition to its primary properties, The Righteous Arm has the ability to cast an order's wrath spell once per day. This spell can only be invoked upon a non-lawful being that the sword is striking (in the manner of a spell storing weapon, although spell storing weapons can normally only release targeted spells in this manner). The effect of the order's wrath is centered on the target of the attack but fills the normal area of the spell (a burst filling a 30-ft. cube), and may affect the wielder of The Righteous Arm if he or she is not lawful. The sword sheds blue light when drawn.
Caster Level: 8th, Prerequisites:order's wrath, creator must be lawful; Market Price: 52,315; Cost to Create: 26,315 gp + 2,080 xp.
Pricing:
A +2 lawful weapon is a +4-equivalent,
or 32,000 gp.
Normally the caster level
for such an item would only have to be 7th, but since the order's wrath
spell on it does damage for every 2 levels, I decided to make it at caster
level 8 so you get that next die of damage. The caster level doesn't affect
the plus-based part of the sword's cost.
Shedding light is free.
Order's wrath 1/day
is spell level 4 x caster level 8 x 2000 (use activated) x 1/5 (for once
per day)=12,800. I'm going to knock that down to 10,000 because you can't
cast it at a range (I know that it's a slight advantage to be able to use
a spell and a melee attack at the same time, but I consider this enough
of a drawback because you might hurt your non-lawful buddies if they're
near you).
Doubling the 10,000 because
it's a secondary property to the item, you add 20,000 to the cost, which
brings the total magic price to 52,000 gp.
Half of that is the cost to create,
or 26,000 gp.
1/25 the magic price is the
XP cost, or 2,080.
Add in the 315 gp for a masterwork
longsword and you get the final costs.
