Starcraft 2 Protoss Support Units
Starcraft 2 Protoss Units and Structures
--> Protoss Support Units (you are
In Starcraft 2, support units are units that would be ineffective alone
but lend support to more powerful units. These units have synergistic abilities that make offensive Protoss
units more powerful.
Units covered in this section: High Templar, Mothership, Observer, Sentry, and the Warp Prism.
Cost: 50 minerals, 150 vespene gas, and 2 supplies.
Requires: Templar Archives
The High Templar is a specialty unit with 1 main ability: Psionic Storm.
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Psionic Storm is an ability which damages all units within the target area over time. It is very damaging but only
effects a small area.
Psionic Storm deals an actual damage amount; it does not take away a
percentage of the unit's health. It is most effective versus "light" units as a result - a Psionic Storm barely
scratches a Battlecruiser and absolutely decimates Marines.
Enemies can escape the damage by moving out of the stormed area, so it is most effective when enemies are boxed
in by large numbers (common versus Terran who are limited by Siege Tanks) or with the Sentry's Force Field
This ability is very powerful and can easily turn the tide of a battle. The major downsides are that it is
difficult, time-consuming, and expensive to use.
Templar are a high-tech unit and Psionic Storm has to be researched, making this a time-consuming endeavor.
Additionally, it costs a lot of vespene gas to research and Templar themselves cost a lot of gas, making this
unit and ability expensive to use. However, in late game situations, it is definitely worth having!
I have also seen many Diamond-ranked Protoss players successfully teching quickly to High Templar in order to
stop Terran Marine and Marauder armies. These players mass Zealots to save vespene to spend on High Templar.
The High Templar also has an ability, Feedback, which can deal damage to units with energy. This can be used to
quickly damage light units who have more energy than health, such as other High Templar, Zerg Infestors, or Ghosts.
Having a quick finger to use Feedback on Ghosts is very important in Protoss vs. Terran match-ups.
Requires: Fleet Beacon, Nexus, No Mothership (you can only have one)
Cost: 400 minerals, 400 vespene, 8 supplies
At a cost of 8 supplies, the Protoss Mothership is the biggest and most expensive unit in game. You can build one
of these at your Nexus if you build a Fleet Beacon.
This unit is a lot like the Arbiter of the original Starcraft. The primary difference is that the Mothership is a
lot stronger and its abilities are a little different.
Mass Recall can be used to teleport your units to wherever the Mothership is. This can be a way to quickly bring
units to battle or summon units into the enemy's base, skipping his defensive structures.
The other major ability, Vortex Field, can disables all units that enter it for 20 seconds. Units in this field
are not targetable. This can be devastating late game if the enemy has a lot of forces. This ability can easily
turn the tide of battle by hiding half of the enemy's units while you pick off the rest of them.
Cost: 50 minerals, 100 vespene gas, 1 supply
Requires: Robotics Facility
The observer is the Protoss' stealth detecting unit. It is a flying unit and is permanently cloaked. It has no use
besides looking for cloaked units and scouting out the enemy. It cannot attack and has no other special
With that said, it is the best detector among the races. Since it is permanently cloaked and is hard to see on
screen, it is actually pretty tough to find and kill these units in the heat of battle. Their survival is
The major downside to this unit is that it requires a robotics facility and a fairly high vespene gas cost. It can
be upgraded to move faster at the Robotics Bay.
Cost: 50 minerals, 100 vespene gas, 2 supplies
Requires: Cybernetics Core
The Sentry is a deceptively powerful Protoss support ground unit. The Sentry has a
moderately powerful ranged attack that can hit both air and ground
The real power of the Sentry is its ability to create force fields. The Force
Field ability can block enemy units from coming into the base (use it on the
ramp), giving stalkers the opportunity to pick the enemy off from a safe
This ability can also be used to prevent fleeing units. This ability makes the
Sentry / Zealot combo potent as Force Field can trap fleeing enemy units so that Zealots can catch them.
Additionally, the Guardian Shield ability provides a small defensive
boost to ranged attacks to all units in the area. This makes the Sentry (in
conjunction with other units) particularly effective versus light ranged units
such as Marines and Hydralisks.
You can research a "Hallucination" ability with these units, which has some
uses for scouting and deception as well.
For a full article on the Sentry, see the Starcraft 2 Sentry article.
Cost: 200 minerals, 2 supplies
Requires: Robotics Facility
The Warp Prism unit allows the Protoss player to carry ground units and then unload them at another location. All
races have a ship like this.
The Warp Prism is unique in that it can also function as a portable pylon. In conjunction with Warp Gates, this is
a powerful way to summon units into the enemy's base or to front lines of battle.
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