Incendiary lances are a protoss weapon utilized by purifier colossi. These are considered enhanced versions of the thermal lance used by the protoss colossus, as the incendiary properties allow the lance attacks to set fire to the ground, damaging enemy targets over time.
References[]
Blizzard Entertainment. StarCraft II: Legacy of the Void. (Activision Blizzard). PC. War Council interface (in English). 2015-11-10.