Xi Construct

The  is a Boss Monster added in the Survivors of the Void expansion. Being a Boss, the Xi Construct may be encountered after initiating a stage's Teleporter Event. It can otherwise spawn naturally during higher difficulties.

Xi Cannon
The Xi Construct's front opens up, firing a devastating beam at its target that deals rapid damage and seemingly has infinite range. The attack concludes by creating an explosion, which is indicated by a golden ring on the ground where the beam strikes.

The Xi Construct cannot change its firing angle when using this skill, but it can move back and forth horizontally to chase its target.

This attack has a cooldown of 8 seconds.

Tetra Alpha
The Xi Construct spawns with 4 allied on its corners, which support it with additional firepower. After these are destroyed, the Xi Construct periodically re-summons them.

This attack has a cooldown of 4 seconds. Up to four charges can be stored, and it can only be used if the currently existing Alpha Constructs have been killed.

Xi Barrier
At low health, the Xi Construct creates a golden spherical shield around itself that functions similarly to, blocking projectiles (including hitscan projectiles) from the outside, but not those from the inside. The Xi Construct will not attack while the shield is active; however, its will continue to attack.

This can be countered by going inside the shield and attacking the Xi Construct from inside; however, this may be difficult with less mobile Survivors.

This attack has a cooldown of 15 seconds (which does not begin until the shield has disappeared).

Loot
Main Article: Defense Nucleus

If the is the Teleporter Boss, there is a 15% chance for the Uncommon item (that drops as a reward for defeating the ) to be replaced by its Boss item, the.

Version History

 * Survivors of the Void
 * (Undocumented) Added New Boss: Xi Construct

Trivia

 * Until the second Survivors of the Void patch, it was possible to encounter the Xi Construct even without enabling the DLC when the was enabled.