Through a protoss generating psionic energy, psi-blade focusers[1] mounted on forearm units contain[2] and channel this energy, said units being located on power[3] and light armor suits,[4] used by zealots[3] and high templar respectively.[4]ExecutorTassadar was able to channel his psionic powers into blades without the need for forearm units.[2]
Psi-blades are incandescent,[1] and are usually of a blue-white color.[2] Psi-blades can cut through any material regardless of density,[1] though can be parried by other psi-blades[5] and warp blades.[6] Over time, the Khalai have further refined psi-blade focuser construction, allowing psi-blades to increase in power as a zealot’s fury mounts in the heat of battle.[1]
Psi-blades locked
The Dark Templar have further refined psi blades into much more powerful warp blades.[7] After the severing of his nerve cords, Artanis demonstrated the ability to wield a psi-blade and warp blade in tandem.[6]
The Tal'darim possess red psi-blades, referred to as bane blades,[9] which are pure Void energy drawn from Amon's realm. Ancient Tal'darim legends speak of masters who could use them to tear planets in half.[10] Khalai protoss possessed by Amon, including Artanis[11] and Selendis,[12] were able to manifest red psi-blades, as could Emil Narud.[13] The Tal'darim under Narud's command at Skygeirr Station wielded psi-blades of a blue-white color though,[14] as did the Tal'darim under Executor Nyon.[15]
Terran Psi-blades
The monomolecular blade utilizes its wielder's psionic energy to hone an edge that has been sharpened to a microscopic degree, allowing it to cut through both physical armor and energy shields.[16]
This article or section contains information about StarCraft: Ghost, which has been declared non-canon. Elements may be taken as 'flavor lore' however. The content may be significantly out of date. Please do not add speculation to this article, and remember to cite a published source for details.
In StarCraft II, psi-blades are colored in accordance with player color in multiplayer games. Some fans reacted negatively, but a compromise was never reached.[19]
Exceptions within the campaigns of StarCraft II are the yellow psi-blades of Karass's zealots,[20] and the green psi-blades of the Zhakul Guardians.[8] In the case of the Guardians their team color (black, not available in multiplayer) is separate from their psi-blade color.
The ghost model has an unused animation for using a psi blade.[21]
An inflatable psi-blade was included in the "goody bag" of BlizzCon 2015.[22]
