Imp Overlord

The  is a returning Boss Monster in Risk of Rain 2, and is part of the monster family. Being a Boss, the Imp Overlord may be encountered after initiating a stage's Teleporter Event. It can otherwise spawn naturally during higher difficulties.

Primary: Void Spike
The Overlord swipes and 6 spikes at its target in a horizontal fan pattern. Each spike is thrown at 10° intervals with the initial one having a velocity of 120m/s and each subsequent one 10m/s less. Each spike deals 30% damage and inflicts for 10 ticks. Spikes that don't strike a target stick in the ground where they fall exploding in a radius of 2m, last for 5 seconds, and deal the same amount of damage to players that touch them. The spikes both as projectiles and on the ground can be intercepted by.

There is technically a second attack involved here, which is an area-of-effect where the Overlord swipes his arm which deals 200% damage and has a proc coefficient of 1.0. However, the player is extremely unlikely to be hit by it unless they are right in front of where he swipes.

The attack overall has an animation duration of 3 seconds which scales with attack speed.

The skill has a cooldown of 3 seconds, and the Imp Overlord can store up to 3 charges. Each spike has a proc coefficient of 0.8.

Secondary: Decimate
The Imp Overlord violently and repeatedly lashes out in front for 3 seconds, dealing an immense 5 x 200% damage to targets within a 12m radius with sweet spot falloff.

The skill has a cooldown of 1 second and a proc coefficient of 1.0 per hit.

Utility: Blink
The Imp Overlord periodically disappears, re-materializing in a different location up to 300m away after a few seconds. After disappearing for 1 second, a large red circle appears on the ground, as well as some floating particles, to telegraph where it will appear next. 2 seconds later the Overlord will reappear in this location and anyone who is within a 14m radius will receive 400% damage with linear falloff and a proc coefficient of 1.0. This attack has an end lag of 1.5 seconds.

The skill has a cooldown of 9 seconds. This attack is not to be confused with the Overlord's death animation, in which a portal emerges and the Overlord is unwillingly dragged back to its original dimension.

Behaviors

 * 1) Use secondary: the Overlord must be within 15m from its target and have line of sight.
 * 2) Use utility: the Overlord must be at least 20m away from its target.
 * 3) Use primary: the Overlord must be within 90m from its target and have line of sight.
 * 4) Chase: no requirements.

Loot
Main Article: Shatterspleen

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

Tips

 * Given the Imp Overlord's high movement speed and ability to teleport, maintaining a safe distance can prove difficult. Even so, staying on the move is preferable to standing still; while the Overlord's Spike Volley can be a nuisance, the alternative - its melee attack - is much more dangerous.
 * While kiting an Imp Overlord, it's best to avoid retracing one's steps too often. The area will eventually become littered with planted spikes and the likelihood of accidentally walking backwards into them increases the longer the battle goes on. To that end, items that enhance vertical mobility, such as or, make dealing with Overlords' spikes considerably easier.
 * While fighting an Imp Overlord with melee attacks can be perilous due to its Decimate attack, the player can attempt to hug the uppermost part of its body to avoid being hit by the ground slams.

Version History

 * Anniversary Update
 * Major Content
 * Added New Lore Entry: Imp Overlord
 * Quality of Life
 * 🌧 Added an team-colored area indicators for attacks
 * PC Patch v1.0.1.1 (Build ID No.5440050)
 * Bug Fixes
 * Fix Imp Overlord void spike fan firing sound not playing on non-host machines
 * Fix Imp Overlord void spike fan chosen animation not being the same over the network
 * Early Access Content Update 5
 * Gameplay Changes
 * 🌧Maximum Blink Distance: 600m ⇒ 300m
 * Now throws Void Spikes in a staggered fashion, rather than all at once
 * Quality of Life
 * Reduced the audio levels of the Imp Overlord
 * Early Access Artifacts Content Update
 * Gameplay Changes
 * Improve performance
 * Early Access Scorched Acres Content Update
 * QOL
 * ☂ Updated the Imp Overlords Hurtboxes to properly match the size of the model
 * Early Access Patch (Build ID No.3830295)
 * Bug Fixes
 * Fix Imp Overlord's void spikes not having their proc coefficient properly assigned. This means that you will bleed and burn for a longer duration from that attack.
 * Early Access Patch (Build ID No.3731106)
 * Bug Fixes
 * Imp Overlords no longer blink off into the distance if no viable target is found
 * Early Access Patch (Build ID No.3703355)
 * Gameplay Changes
 * Remove passive regen
 * Increase base damage from 13 to 16
 * The boss fight was a big of a slog if you had lower DPS because of the boss' natural regen. Higher damage should make the boss fight more intense.

Trivia

 * In the first game, the Imp Overlord was a community-made boss suggested on the Risk of Rain forums by Seria-Myouna and illustrated by Daimera.