The Ess of Johan is a Legendary amulet in Diablo III. It requires a minimum character level of 31 to drop.
The special affix appears to have a 6-8 seconds cooldown (enemies are slowed for 3-5), but it pulls all enemies within 60 yards to the target, only ignoring those immune to Knockback. This amulet is especially powerful when combined with Strongarm Bracers.
Stats (Level 31)[]
The Ess of Johan
Legendary Amulet
Properties:
"A variation on the retreat and ambush stratagem uses the Ess of Johan most effectively. First, send out a small group of soldiers to confront the enemy and create the appearance of being overwhelmed. When they retreat, the enemy will follow to finish them off. Just as the pursuing force realizes it's been led into a trap, employ the artifact to deny its escape." —Rakkis's Strategies of War