Echo of Lilith, or Uber Lilith, is an extremely difficult version of the endgame boss Lilith in Diablo 4. To defeat her, players need to prepare as best they can and have the right build with the best weapons. But even this does not guarantee victory over her, as many of her skills can one-hit even fully leveled-up characters with the best armor. To help fans, this guide will explain where to find Uber Lilith in Diablo 4 and how to defeat her.