The latest video focuses on the Witch Doctor character, combining elements of his backstory with gameplay footage.
Rebelling against his own spiritual leaders, the Witch Doctor sets out to face the demonic creatures that threaten Sanctuary.
With access to various forms of magical equipment, the Witch Doctor can summon spirits to attack foes and inflict disease upon the enemy.
Diablo III is currently in the beta testing phase of development. The beta will officially close on May 1, prior to the game's release on May 15.
A Collector's Edition will also be available at retail, which includes the game's soundtrack, a two-disc behind-the-scenes DVD and Blu-ray set, an art book and a 4GB USB soulstone flash drive loaded with the full games of Diablo II and its expansion Lord of Destruction.
Blizzard is also offering Diablo III free to users who sign up for the World of Warcraft annual pass, a yearly subscription to the popular MMO.