Nether Portal Disruptor

Use
This item can be used to disrupt a Unstable Nether Portal, summoning the following various demons, based on the location:
 * Lambent Felhunter
 * Warped Voidlord
 * Baleful Knight-Captain
 * Ruinous Overlord
 * Malformed Terror
 * Ruinous Overfiend
 * Warped Overlord
 * Anomalous Observer

Source
This item is sold by at Deliverance Point at the Broken Shore in exchange for.