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(In Starcraft?) the psychic powers of the Protoss race.
(In StarCraft) the psychic powers of the Protoss race.
Psi is the 23rd letter of the Greek alphabet. It has come to be a symbol for psychology-related topics, and has also been used as a shorthand for supposed psychic abilities or powers.
(In StarCraft) the psychic powers of the Protoss race.