Sever

Sever is a legendary sword in Diablo III. It requires character level 50 to drop.

This is the only weapon past patch 2.0 to retain its 'slain enemies rest in pieces' property.

It is also the only weapon with bonus damage against demons.

Development
Originally, the corpse explosion effect was achieved by adding a huge portion of damage to a monster (already dead by that moment). However, it was scrapped when players found an unintended use for it in form of skills and items that allow dealing part of damage to surrounding foes.