PvT - 1 Gate Expand (Blink/Robo/Clossus)

Pylon

The protoss supply building; it produces a radius of energy that is a requisite for the placement of most other protoss structures.

Gateway

Warps in the zealot, the stalker, the sentry, the high templar, and the dark templar.

Assimilator

Allows probes to harvest vespene gas from geysers.

Cybernetics Core

Allows for the warping in of stalkers and sentries. Also allows research of weapon and armor upgrades for air units.

Nexus

Produces probes and is the place that all minerals and gas are dropped off at to be processed. Also produces the mothership.

Pylon

The protoss supply building; it produces a radius of energy that is a requisite for the placement of most other protoss structures.

Adept

A ranged unit that can project a psionic shade to teleport.

Assimilator

Allows probes to harvest vespene gas from geysers.

Adept

A ranged unit that can project a psionic shade to teleport.

Twilight Council

Contains upgrades for stalkers and zealots.

Stalker

A mobile ranged unit that can blink short distances.

Blink

Stalkers gain ability to teleport short distances.

Gateway

Warps in the zealot, the stalker, the sentry, the high templar, and the dark templar.

Robotics Facility

Warps in the warp prism, observer, colossus, and immortal.

Gateway

Warps in the zealot, the stalker, the sentry, the high templar, and the dark templar.

Observer

A permanently cloaked robotic scout and detector.

Warp Prism

A transport unit that can deploy a power field for warping in units.

Observer

A permanently cloaked robotic scout and detector.

Robotics Bay

Formerly known as the null circuit,[6][7] this structure enables a robotics facility to produce colossi and contains upgrades for observers and warp prisms.

Nexus

Produces probes and is the place that all minerals and gas are dropped off at to be processed. Also produces the mothership.