Ei Räkosh, Banisher of Memory

Ei Räkosh, Banisher of Memory is a Hive Lightbearer Wizard of the Lucent Brood, first seen in The Final Shape. It is the boss of The Forgotten Deep, a Lost Sector in The Pale Heart, and is found in the final room of that Lost Sector.

The fight follows the usual Lightbearer Wizard pattern and calls in Hive reinforcements. The boss raises an Immunity Shield at health thresholds. To drop it, the Guardian steps into three pools of Hive magic, each of which summons more Hive forces, including a Shrieker that gains temporary immunity once the second pool is cleansed. The Ghost empowering the Wizard has to be crushed to finish the boss. Defeating Ei Räkosh unlocks the Cache code for rewards.