Ghoul

Ghouls are Summons created by Arthas after learning his Heroic Army of the Dead. Arthas can sacrifice a Ghoul to heal for 267 Health.

Ghouls are summoned at random positions within 5 radius around Arthas, but will reorganize around Arthas at 2.5 range at 60 degree intervals once they are able to move. Ghouls are unable to move for the first 1.3 seconds after being summoned. Ghouls will follow Arthas in this formation until he issues an attack move on an enemy. Each of the Ghouls will then attack this target until they or the target dies or the Ghoul gets leashed. Ghouls persist even after Arthas's death.