- Cost: N/A

click to enlarge
- Supply: 4
- Build Time: 17
- HP: 10
- Shields: 350
- Attack: Ground/Air 25 +10 Vs. Bio
- Type: Light
The Archon is formed by combining two Templars into one form. Once created, the Archon becomes a radically different and deadly unit.
As you can tell from the +10 vs. Bio, the Archon is primarily good against biological units. Given the Archon's incredible shields, this makes the Archon a perfect response to an opponent who is trying to overwhelm a Protoss player with sheer numbers. Terran players going heavy into Marines or Zerg players sticking with masses of Roaches and Zerglings are good examples. The Archon isn't terrible against armored units, however. An attack of 25 isn't bad, and armored units like Siege Tanks and Immortals don't gain an attack bonus against an Archon. The Archon can attack air units, but the very short range makes this rarely useful.
While Archons are very powerful, their are hard countered by EMP. This is because they only have 10 hitpoints, so when their shield goes down they die almost instantly. Ghosts are the number one enemy of the Archon, and a Terran player using Ghosts will be able to demolish a Protoss player using Archons just about every time. Be careful against Terran and scout frequently to make sure they're not building a Ghost Academy.