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Ion cannons are a protoss technology developed for the phoenix[1] and later the mirage.[2] They fire beams of negatively charged ions, doing heavy damage to armored targets. The short wavelength of the ions allow the cannons to be fired on the move, but at a short range. The ion cannons’ effective combat range presented a problem until the protoss began to replace the old focusing lenses with the more advanced anion pulse-crystals.[1]


  1. 1.0 1.1 2015-02-05, Phoenix Science. Blizzard Entertainment, accessed on 2015-02-11
  2. Blizzard Entertainment. StarCraft II: Legacy of the Void. (Activision Blizzard). PC. War council (in English). 2015.