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.