Greater Wraith

A Greater Wraith is an undead creature of evil and darkness, hating the light and all living things. Greater Wraiths can spawn randomly in specific areas of Firkraag's Maze where other types of undead appear in the Baldur's Gate II: Shadows of Amn game versions.
==Gameplay==
This Undead creature must advance to close quarters and attempt to strike its target to do any damage or to Level drain it.
The malignant entity is immune to several status effects as listed in the InfoBox, and at least a magical item is needed to strike it in combat.
Except for a moderate increase in HD level, hit points and Armor Class, the Greater Wraith is actually weaker in combat THAC0 and Attacks per round than the ordinary Wraith, and its saving throw values are also not as good.
==Note==
The Wraith and Greater Wraith are not immune to Poison or Poison damage. They are Undead, so this might be a miscoded in the creature file. No one knows for sure, but it is an aberration from the other game Undead creature files.