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Overseer (Legacy of the Void)

From Liquipedia StarCraft 2 Wiki
This article covers the current multiplayer version of this unit. For another version see Overseer (Wings of Liberty and Heart of the Swarm).
[e][h] Overseer
Unit Information
Air Unit
Advanced aerial observer. Maintains the unit cap set by the Overlord. Can use Spawn Changeling and Contaminate.
 50 (150)  50  12 (30)  0
Unit stats
200 1 (+1)
50 / 200
11 (+2.75)
2.62 (+2.1)
Strong against:
Weak against:


The Overseer is a Zerg unit that is morphed from an Overlord. It has some abilities which the Overlord does not have: the ability to Detect invisible units, spawn Changelings and Contaminate. The Overseer is extremely useful for scouting and detecting enemy units/positions. It moves faster than the Overlord and also receives the benefit of the Pneumatized Carapace upgrade. In return, it loses the Overlord's ability to transport units and Generate Creep.

It is a generally a good idea to include Overseers in a mid-end game army to detect any stealth units.


Caster: Overseer
Duration: 0.54 s
Hotkey: W
Grants the Overseer 25% wider vision, but removes its ability to move. This ability can be canceled after activation.
Cancel Oversight
Caster: Overseer
Duration: 0.54 s
Hotkey: R
Restores the Overseer's ability to move and returns its vision to its normal radius.
Range: 11
The Overseer is a Detector unit that can see cloaked, burrowed and hallucinated units.


Caster: Overseer
Duration: 107 s
Hotkey: C
Spawn a Changeling, a small unit with timed life and no attack. When a Changeling first encounters an enemy unit, it will match that unit's color and change into a Zealot, Marine, or Zergling, depending on the enemy race.
Caster: Overseer
Duration: 21 s
Hotkey: E
The Overseer covers an enemy structure in slime. The structure will be unable to train units or research upgrades for 21 seconds.


 100      100      43 Hotkey: P
Researched from: Hatchery
Increases the movement speed of Overlords to 2.63 and Overseers to 4.72.

Competitive Usage[edit]

Overseers are commonly morphed in all match-ups. They provide invaluable scouting information with their high movement speed, long sight range, and ability to drop Changelings. As the Zerg's only mobile detection, they are necessary to defend against cloaked/burrowed units from all three races. Often, if an opponent is suspected of having the ability to produce cloaked units, an Overseer is morphed preemptively upon morphing a Lair.

A common tactic to get a scout into your opponent's base is to move an Overseer to the cliff, and drop a Changeling there. The speed of the Overseer allows it to easily escape, and the Changeling will give you at least some information before it is killed. However, Changelings should be dropped strategically, so the other player will not notice the unit for the split-second that it is your color.

Contaminate can be used to deny any enemies ability to tech, raise an army, or even produce workers. A contaminated Hatchery will not spawn larvae from the periodic (10.71) larva or Spawn Larvae.



Patch Changes[edit]

External links[edit]


  1. Blizzard Entertainment (14 November 2017). "STARCRAFT II 4.0 PATCH NOTES".