Long ago, Ansitif joined with six tanar'ri allies to hunt down and destroy a powerful obyrirh called the Malgoth. Instead of triumph, their victory brought disaster. The affair took them away from their centers of power, and opportunisric demon lords assassinated or imprisoned each member of the alliance in turn. Ansitif was imprisoned in the Wells of Darkness. Almost no one remembers Ansitif now, but his memories of fallen Abyssal empires and secret magical locations still make him a useful tool for Abyssal explorers and treasure seekers.
Ansitif favored the corruption of places of worship.