Zoetic Lockset

Overview

Zoetic Lockset is the first boss of the Sundered Doctrine dungeon, from Episode: Heresy, set in the Sunken Pyramid in the Court of Savathûn. It is a group of four Pyramid-modified Shriekers emplaced deep within the Sunken Pyramid, where they act as a security system for the vaults. The second boss is Kerrev, The Erased, a Scion.

Encounter

The four Shriekers share one health pool and control four symbol wheels. A Lockset Progression bar fills while they gaze at the wheels from left to right. At each quarter of the bar (25, 50, 75 and 100 percent), the rightmost unlocked wheel's symbol locks in, and locked symbols resolve from right to left.

The symbols determine what the fight does. Hive spawns Ogres. Knowledge spawns Knights and Preceptor Wizards. Commune makes the Shriekers fire projectiles. Stop blocks most enemy spawns. Kill starts the damage phase, and the leftmost position gives the longest one.

Defeating Preceptors yields Resonance Splinters. Depositing them rotates a wheel's symbols, and shooting a Crux reverses the direction. Untouched wheels also tick on their own, so they need monitoring. In the damage phase, focus whichever Shrieker is open, since they share health. If the Shriekers survive, the mechanics repeat. After they fall, shoot the dropped core into the concave bowl near the loot chest to open the exit.