An Artosis Pylon is a single Pylon responsible for powering multiple structures in a Protoss base. It is a vulnerability because an opponent could significantly disrupt the Protoss player's production, tech advancement, and/or base defenses by destroying that one Pylon.
In an NASL cast, IdrA labeled one of CrunCher's's Pylons (which was alone powering several important buildings) as being an 'Artosis Pylon'. The reference was to the NASL Season 1 Week 4 game (Artosis vs Fenix), where Artosis lost power to several important tech and production buildings when Fenix took out a single Pylon.
While Artosis is not the first or last player to make this mistake, IdrA was the first to name the error on such a popular broadcast. While it began as a friendly joke, it quickly became this standard term.
 Tasteless Pylon
During a 2012 GSL Season 4 Code S Round of 16 match between Liquid`HerO and FXO Leenock, the defensive line of HerO was breached by the zergling rush of Leenock. The entirety of HerO's defense was powered by a single Pylon which was quickly targeted down and destroyed by attacking zerglings. However, an additional Pylon finished warping in soon after the first Pylon had fallen. Tastosis enthusiastically remarked that the backup Pylon in this case must be a Tasteless Pylon, a phrase still used to describe any Pylon that backs up an Artosis Pylon.
- CrunCher vs. Ensnare (NASL Season 1 Week 5), video in which IdrA coined the term
- Fenix vs. Artosis (NASL Season 1 Week 4), the match in which Artosis lost a key Pylon
- Chronomancer vs. FezLightning, the Protoss player destroyed one of his own Pylons losing power to a Forge, two Gateways, and four Cannons at his wall just moments before the opponent attacked