Arrow of Harm: Similar in appearance to the dreaded arrow of slaying, this black-shafted war arrow is inscribed with fell runes by the powerful priests of Murder and Pestilence. It confers a +3 bonus to hit when shot by any variety of long bow. Any living creature stuck by this necromantic bolt suffers the effect of a harm spell and is automatically reduced to ld4+l hit points.
For so long as the bolt remains in the victim's flesh, the unfortunate is immune to the effects of magical or natural healing. Removing the embedded arrow from a victim's flesh inflicts an additional ld8+3 points of damage, which usually results in unconsciousness (or in some campaigns, the victim's death once he or she reaches 0 hp). Attempts to magically heal a victim with an embedded arrow of harm will only succeed if dispel magic is cast on the bolt during the same round as a cure light wounds (or similar magic) is employed on the victim.
Its rumored that the Cult of Pain has devised an even nastier version, similar to the regular arrow, except that the victim is additionally forced to make a saving throw vs. death magic or be paralyzed with pain for so long as the bolt remains embedded in the flesh (with the same penalties for extraction as the normal bolt).
From 1-4 of these baneful sheaf arrows will be found at once, and they lose their magical abilities after they have been used successfully against a victim (arrows which have missed their target have a 2 in 6 chance of breaking; if not, they can be collected for use again). (600 XP each.)