Split dragontooth necklace

The split dragontooth necklace is a Dungeoneering reward that was released along with the Warped floors. The necklace can be purchased from the rewards trader for 17,000 Dungeoneering tokens, and requires 60 Prayer and 60 Dungeoneering to purchase.

This necklace restores prayer points when burying certain bones - the number of prayer points was secretly reduced on 30 April 2013:
 * 50 Prayer points for burying normal, burnt or bat bones.
 * 100 Prayer points for burying big, baby dragon, or wyvern bones.
 * 100 Prayer points for burying dragon, ourg, and frost dragon bones.
 * While using the attuned ectoplasmator:
 * 50 Prayer points for absorbing impious ashes
 * 100 Prayer points for absorbing accursed ashes, ghosts, ghasts, tortured souls, regular and mighty banshee, Loar, Phrin, Riyl, Asyn and Fiyr Shades
 * 100 Prayer points for absorbing infernal ashes, tortured ashes, aberrant spectres, spiritual mages, rangers and warriors, the Barrows brothers, tormented wraiths and all Revenants

Note that manually scattering ashes will not restore prayer points when using the necklace, nor will ghosts killed in conjunction with the ectoplasmator. Only ghosts killed or ashes scattered automatically by the attuned ectoplasmator will trigger the effects of the necklace.

Combined with the bonecrusher in locations where aggressive monsters with low life points that frequently drop bones, this could be quite useful. This item is the better version of the twisted bird skull necklace and the lesser version of the demon horn necklace. Using this necklace during PvM combat can result in player camping in a spot like frost dragon resource dungeon for many hours.