Solus Control Unit

The Solus Control Unit is a Boss Monster introduced in Risk of Rain 2. Being a Boss, the Solus Control Unit may be encountered after initiating a stage's Teleporter Event. It can otherwise spawn naturally during higher difficulties. It is exclusively found on Siren's Call and Sky Meadow.

Environments

 * Siren's Call
 * Sky Meadow

Solus Charge Shot
The Solus Control Unit fires six light blue orbs at the player, in either a horizontal or vertical line. The orbs explode in a small area upon colliding with an entity or surface dealing 100% damage each.

Each shot has a Proc Coefficient of 1.0.

Solus Probe Launch
At random intervals, the Solus Control Unit can summon 3  nearby.

Solus Charged Detonation
After dropping below 25% of its maximum health, the Solus Control Unit will then begin to periodically perform an attack where a large blue circle will appear on the ground around a random opponent, applying the Slow50 debuff. This circle explodes after a delay of approximately 5 seconds, dealing 400% damage in a very large area to any players left inside, as well as launching them high into the air.

The explosion has a Proc Coefficient of 1.0.

Loot
Main Article: Empathy Cores

If the Solus Control Unit is the Teleporter Boss, there's a chance the Uncommon item you would get as a reward for defeating the Teleporter Boss could be replaced by its Boss item,.

Tips

 * Fighting the Solus Control Unit in melee range can be dangerous, as it can turn around very quickly, and hit multiple Charge Shots on a player at once.