Mastering the Dark Arts in Hogwarts Legacy allows players to utilize powerful Unforgivable Curses to turn the tide in challenging combat encounters. Among these forbidden spells, Imperio stands out as a unique utility ability that temporarily compels enemies to fight alongside you as loyal allies. Unlocking this spell requires progressing through a specific companion questline that explores dark themes and moral choices within the Wizarding World.

Prerequisites for Unlocking the Imperio Curse

Before you can learn Imperio, you must reach a minimum character level of 16 and progress significantly through the main story campaign. Specifically, you need to complete the main quest titled In the Shadow of the Estate alongside your classmate Sebastian Sallow. Finishing this story milestone grants access to the subsequent side questline necessary to obtain the spell.

Starting In the Shadow of the Time Quest

Once the required prerequisite quests are finished, Sebastian Sallow will send you an Owl Post message initiating the side quest called In the Shadow of the Time. You must travel to the Feldcroft region to meet Sebastian near his family catacomb entrance. This location serves as the staging ground for a deep dive into ancient relic hunting and dark magic exploration.

Navigating the Catacomb and Learning the Spell

Inside the Feldcroft Catacomb, you will face multiple waves of aggressive Spider enemies while solving skeletal barricade puzzles to venture deeper into the tomb. As you advance through the catacomb, Sebastian will offer to teach you the Imperio curse to help handle the rising threats. You must explicitly choose the dialogue option agreeing to learn the spell when prompted by Sebastian.

Combat Applications and Strategic Benefits of Imperio

In combat, casting Imperio on a formidable enemy such as an Executioner or Troll immediately turns them against other hostile targets. The controlled enemy deals increased damage to their former allies while remaining invulnerable to your direct attacks for a brief period. Additionally, affected enemies become marked with a cursed status, creating strong synergies with other Dark Arts talent perks to maximize overall combat effectiveness.