FANDOM


Shakurus SC1 Art2

You may be looking for:

Sentry SC2 Head1

A sentry

The sentry is a protoss support unit introduced in StarCraft II available early in the game. It was known as the nullifier[1] and then as the disruptor during development.[2]

OverviewEdit

Sentry SC2 Art1

A sentry

Used to support zealots[3] in light of the protoss race's diminishing population, sentries are protoss combat drones.[4] Sentries employ a disruption beam to attack their enemies,[5] and offer protection through guardian shields.

Sentries can also project force field barriers to stall or split up opposing forces.[5] This is done by turning bursts of energy into a small, impenetrable barrier to hinder, block, or funnel the advance of enemy troops. While creatures or machines of prodigious size can shatter the cohesion of these translucent force fields, ordinary soldiers and vehicles become fodder to protoss ranged weapons.[5]

Sentries also have the ability to create hallucinatory images[4] through an in-built holo-projector.[5] These holograms can draw enemy fire while a real protoss strike force maneuvers into position to deliver the killing blow.[4] These hallucinations are composed of solid light and are three-dimensional, able to mimic protoss warriors, vehicles, and constructs. Each replica, while limited in duration, is able to withstand some degree of punishment. The purpose of these life-like images is twofold: making the enemies of the protoss believe they’re fighting a much larger force than anticipated, and protecting protoss lives.[5]

By 2506, some sentries were being outfitted with portable shield batteries to better sustain the lives of protoss warriors in battle.[6]

ForgedSentry SC2SkinImage

A Tal'darim sentry

Sentries had also been incorporated into the Tal'darim arsenal by 2504[7] and by the End War, they had developed their own variant.[6] Nevertheless, some were left mostly unchanged, allowing for a varied array of robotic support and a certain degree of misdirection.[8] Many Purifiers meanwhile retained sentries, in spite of their normal deployment of energizers.[9]

Game UnitEdit

The sentry has a beam which does continuous damage to one target.[10] Their high gas cost relative to their low HP and attack power, delgates sentries as support units for other troops rather than frontline fighters.

Sentries are strong against mutalisks, zealots, and zerglings and weak against hellions, stalkers, reapers, and hydralisks.

Sentry/stalker combinations are common in mid-game scenarios.[11]

Wings of LibertyEdit

Sentries are not usable in the StarCraft II: Wings of Liberty protoss mini-campaign.

Upgrades and AbilitiesEdit
For the terran-devised force field, see force field (terran).
Force field
Force Field

Creates a wall of energy at target point, pushing nearby units away and making the terrain impassible. Massive units and the mothership's Vortex ability remove Force Fields.

Force Field is smartcast.

Usage
Hotkey F
Cost 50 Energy Terran SC1
Duration 11Time SC2 Game1
ve
Guardian shield
Guardian Shield

Sentries can create an aura which reduces incoming ranged damage to friendly units by 2.

Usage
Hotkey G
Cost 75 Energy Terran SC1
Range 4
Duration 11Time SC2 Game1
ve
Hallucination
Hallucination

Sentries produce false copies of units to distract opponents. Duplicates have the same number of hit points as the original but take double the damage. The number of hallucinations created depends on the unit: gateway units spawn in twos, probes in fours, and all other units spawn one.

Hallucinations are instantly destroyed by psionic storm and are detected by detectors.

The sentry can create duplicates of units that the player doesn't meet the tech requirements for, but cannot make hallucinations of dark templar

As of Heart of the Swarm, hallucination no longer needs to be researched.

Usage
Hotkey C (archon: N; colossus: C; high templar: T; immortal: I; phoenix: X; probe: E; stalker: S; void ray: V; warp prism: A; zealot: Z; disruptor: D; adept: H)
Cost 100 Energy Terran SC1
Duration 43Time SC2 Game1
Acquisition
Purchased from

Cybernetics core (WoL)

Automatically available (HotS/LotV)
Hotkey H
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 80Time SC2 Game1
ve

Increases the armor of protoss ground units.

Acquisition
Purchased from Forge
Hotkey A
Level 1
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 200 Minerals Terran SC1 200 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve

Increases the attack of protoss ground units.

Acquisition
Purchased from Forge
Hotkey G
Level 1
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 200 Minerals Terran SC1 200 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve
  • +1 armor to shields per level.
Acquisition
Purchased from Forge
Hotkey S
Level 1
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 225 Minerals Terran SC1 225 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 300 Minerals Terran SC1 300 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve

Legacy of the VoidEdit

In Whispers of Oblivion, the sentry gains a Shield Recharge ability, that functions similarly to the heal ability of the medic, restoring shields to a nearby protoss unit at an energy cost. The sentry cannot attack while using Shield Recharge. In the Legacy of the Void campaign, the sentry lacks Force Field, but the base sentries found in "Forbidden Weapon" have the Shield Recharge ability. The Aiur sentry can use Double Shield Recharge, allowing them to restore shields to two units.

The player may choose the energizer or havoc as sentry variants in the Legacy of the Void campaign. The sentry acts as a purely defensive support unit between Guardian Shield and Double Shield Restore, whereas the energizer and havoc can support the player's armies with more offensive-based abilities.

Upgrades and AbilitiesEdit
ShieldRecharge SC2-LotV Icon1
Shield Recharge

Restore 3 shields a second to an allied protoss unit at the cost of 1 energy per 3 shields restored. Can be set to autocast.

ve
DoubleShieldRecharge SC2-LotV Icon1
Double Shield Recharge

Restore 3 shields a second to up to two allied protoss units at the cost of 1 energy per 3 shields restored. Can be set to autocast.

ve

Increases the armor of protoss ground units.

Acquisition
Purchased from Forge
Hotkey A
Level 1
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 200 Minerals Terran SC1 200 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve

Increases the attack of protoss ground units.

Acquisition
Purchased from Forge
Hotkey G
Level 1
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 200 Minerals Terran SC1 200 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve
  • +1 armor to shields per level.
Acquisition
Purchased from Forge
Hotkey S
Level 1
Cost 150 Minerals Terran SC1 150 Gas Terran SC1 114Time SC2 Game1
Level 2
Cost 225 Minerals Terran SC1 225 Gas Terran SC1 136Time SC2 Game1
Required Twilight council
Level 3
Cost 300 Minerals Terran SC1 300 Gas Terran SC1 157Time SC2 Game1
Required Twilight council
ve

StrategiesEdit

Force FieldEdit

Sentries can use Force Field to isolate enemy workers, preventing them from escaping their onslaught.[12] Force Field also proves to be very effective for splitting forces or preventing them from passing through choke points.[13] Melee units may be blocked with force fields and attacked with ranged units.

Guardian ShieldEdit

Guardian Shield is most effective against attackers with low base damage: marines and mutalisks. Guardian Shield protects all ground and air units positioned over the horizontal circumference of the shield (where the shield joins the ground), even if a protected air unit is not visually within the "bubble" of the shield. However, the shield is centralized around the sentry, and units moving outside its area of effect no longer gain its benefits. This means that Guardian Shield is best used by keeping the sentry close to the rest of the player's forces. If the sentry is destroyed, the effects of Guardian Shield will instantly end.

The table shows the effective health for a defender protected by Guardian Shield. The figure assumes the defender has 1 base armor (as is the case with most protoss units), and defender and attacker both have 1 defense and attack upgrade. For example, the defender lasts 66% longer against marines if protected by guardian shield.

Table

The comparisons vary only 0-2% assuming attack and defense upgrade levels remain evenly matched.

The Guardian Shield bonus is applied after the immortal's Hardened Shield. Therefore, effective health of an immortal protected by Guardian Shield is at least 125% (higher if the attacker deals <10 damage before the Guardian Shield bonus is applied).

Attacker Effective health of defending unit Notes
Non-Armored defender Armored defender
Mutalisk 167% Includes reduction from bounces
Marine 166%
Stalker 140% 116%
Marauder 129% 111%
Hydralisk 122%
Roach 114%
Immortal 111% 104%
Deployed siege tank 103%

DevelopmentEdit

Sentry SC2 DevHead1

Development profile

Main article: Sentry/Development

AchievementsEdit

Shroom absorption Shroom Absorption
Points

10 Achievement SC2 Game1

Criteria

Absorb 1,000 damage with hallucinations in a single Unranked or Ranked game.

JustAnIllusion SC2 Icon1 Just An Illusion
Points

10 Achievement SC2 Game1

Criteria

Control 15 hallucinations at once in a Melee game.

VariantsEdit

ImagesEdit

ReferencesEdit

  1. 2009-05-08. Michael Graf. Starcraft 2 - Alle Einheiten (page 3). Gamestar. Accessed 2009-05-08.
  2. Well since you guys are so intently asking :) Yes, the Nullifier is known as the Disruptor now. Didn't want to bombard you guys with too many name changes at a time. There is still possibility of name changes moving forward as well. Karune. 2009-05-26. Nighthawk+HSM vs Mutalisk. Battle.net StarCraft II General Discussion Forum. Accessed 2009-05-26.
  3. Races: Protoss. Blizzard Entertainment, accessed on 2010-08-07
  4. 4.0 4.1 4.2 Blizzard Entertainment staff. 2010-07-24. Units: Sentry Blizzard Entertainment. Accessed 2010-07-15.
  5. 5.0 5.1 5.2 5.3 5.4 2014-10-30, Sentry Science. Blizzard Entertainment, accessed on 2014-11-01
  6. 6.0 6.1 Blizzard Entertainment. StarCraft II: Legacy of the Void. (Activision Blizzard). PC. War Council interface (in English). 2015-11-10.
  7. Blizzard Entertainment. StarCraft II: Wings of Liberty (Activision Blizzard). PC. Mission:Wings of Liberty, Smash and Grab (in English). 2010-07-27.
  8. Blizzard Entertainment. StarCraft II: Legacy of the Void. Collections Tab: Skins. July 19, 2017
  9. Blizzard Entertainment. StarCraft II: Legacy of the Void. Collections Tab: Skins. July 19, 2017
  10. Only changes are balance changes, which will still continue to change. Otherwise besides that, the abilities are still the same. Hallucination still does not work on Carriers, Motherships, Dark Templars, an Observers. I'll have to get back to ya on the lore side :) maybe get them to post up a website update on that. The Sentry's weapon hits one target at a time, doing damage as long as the enemy is targeted. Karune. 2009-03-16. Karune: Has the Dark Pylon changed? Battle.net StarCraft II General Discussion Forum. Accessed 2009-03-16.
  11. 2012-06-08, StarCraft II: Heart of the Swarm - Battle Report (Protoss vs Zerg). Blizzard Entertainment, accessed on 2012-06-21
  12. In one of our Battle Report considered replays, I have actually seen 2-3 Nullifiers brought straight into the enemy resource line, then all exits force fielded so the enemy drones couldn't get out, and the Nullifiers pretty much killed a large amount of them easily since they get bonus biological damage. Karune. 2009-05-01. Worker harassment with Nullifiers. Battle.net StarCraft II General Discussion Forum. Accessed 2009-05-01.
  13. Dustin Browder, Robert Simpson, Yeon-Ho Lee, David Kim. 2009-06-22. Battle Report (3). Blizzard Entertainment. Accessed 2009-06-22.