The Psychic blast is a technique commonly used by some units of Yuri's Army and Yuriko Omega during Great World War III and War of the Three Powers respectively. This blast released at enemy infantry, mostly the Allies. Problem with Yuri's iteration are that it can cause severe injuries or death to friendly infantry, and it cannot be released while the Yuri Clone is mind-controlling a unit.
While it is meant to dispose of mass infantry units, Yuri's and Yuriko's psionic blast were also strong against vehicles. This made up for Yuri not being able to mind control ore miners and Robot Tanks, and simply made Yuriko stronger.