Porr was a male human and an inhabitant of Parnassos, the planet where the Scyre clan, to which Phasma belonged, resided. Driven by ambition to seize leadership, he violated the clan's most fundamental rule by assassinating Egil while he slept. Consequently, Phasma challenged him to a duel. During their confrontation, Keldo, Phasma's brother, stealthily approached Porr from behind and severed his Achilles tendon. Subsequently, Phasma presented him with a choice: face death or live in servitude to her. He opted for the latter.