Baleful Remnant

Baleful Remnant is a Legendary two-handed flail in Diablo III. It requires character level 31 to drop.

The special affix spawned Avatars do not benefit from runes, but do benefit from Eternal Union and Unrelenting Phalanx. No more than 30 can be summoned at a time. Each of them deals 100% damage as Physical per attack.

Trivia

 * The description appears to be a reference to The Colour Out of Space story by Abdul Alhazred (H.P. Lovecraft's pseudonym which served as an inspiration for Abd al-Hazir).