Oracle (Legacy of the Void)
- This article is for the Legacy of the Void multiplayer version. For the Heart of the Swarm version, see Oracle (Heart of the Swarm).
While fairly expensive and fragile, the Oracle is a very mobile unit and has several useful spells. Its attack, Pulsar Beam must be activated for an energy cost before it can be used and also drains energy while the ability is activated. It rapidly destroys workers and other light units, although anti-air units and structures will quickly kill it. The Oracle is also an effective scout and can be used as a temporary detector.
Proxy Stargate play has seen some competitive play, and if unscouted can cause serious damage to the opponents economy.
Oracles are also common in the mid-late game of this matchup thanks to their envision ability, allowing a player to constantly keep track of their enemy. It is also convenient that they can be acquired while on the way to Tempests, a very powerful unit in this matchup's lategame.
Oracle play against Terran can be a gamble due to Marines. Against a greedy or unprepared Terran an Oracle opening will do devastating damage to the economy. If the Terran player scouts the build or amasses a large number of marines though, the build can be shut down quite quickly. However, surviving oracles are still useful support units, as their fast speed will help deal with small Terran drops in conjunction with photon overcharge. Some players also utilize revelation to great effect in scaring away drops and spotting the late game Terran army to get off critical storms.
It is important to note that a single Oracle can take up to five Marines without Combat Shield, while two Oracles are only able to eliminate a group of eight or less Marines, these facts are important to remember while going for an Oracle rush or defending one.
Due to their low health and Zerg players always having anti-air in their base (Queens), Oracles are seldom seen in the matchup for harassment. However, oracles can still be useful in mid- and late-game because of their Revelation ability, especially when used on packs of Mutalisks to make the Protoss player prepared for harassment. Also, it may be worth noting that Oracles can kill Larva very quickly because they die from a single oracle attack even at full health, which can leave the Zerg unable to produce additional units.
- Revelation puts a seal on units in the area the ability was cast on, the seal lasts for 60 Seconds and reveals the units it is placed upon.
- Activate Pulsar Beam is a spell that costs 25 energy to activate and 1.4 energy per second thereafter; it enables the Oracle to attack ground units with a high-damage beam that can two-shot workers and marines without Combat Shield. The Pulsar Beam is the main weapon of the Oracle and can take out a large number of workers in a short time. Therefore it is important to activate the ability at the last possible second to deal maximum damage. Also it is important to note that the Sentry's Guardian Shield does not reduce the damage of the Pulsar Beam.
- Stasis Ward is the newest ability of the Oracle. While it traps units for 30 seconds, the units trapped cannot be attacked or affected by abilities. The Protoss player can however use this time to take a favorable army placement. This ability can also be used to split an army in two.
The Oracle and Tempest were designed so that Protoss could make more use of the Stargate in the early-game and that it would be possible to go for Stargate based armies in the late-game, given that it was an unpopular choice for most of Wings of Liberty (outside of PvP and PvZ early-game, and PvZ extreme late-game). Besides the Warp Prism, it was felt that the Protoss race lacked a way for harassment, and that is another reason why the Oracle was created.
Oracle's quotes (video and sound) - YouTube video.