Harbingers of alien forces, each princesses of peril precariously persisting at purloining power, these ladies were dangerous adversaries indeed.
Komand'r was the eldest princess of the planet Tamaran, hated by her world's people for the destruction wrought upon it by the alien Citadel Empire in her name. Envying her younger sister Koriand'r aka Starfire, she herself became Blackfire when both obtained the ability to harness solar energy due to experimentation by the Psions. From then on, Blackfire betrayed her civilization and her family in her quest for power, facing Starfire and her friends the Teen Titans of Earth-One including Wonder Girl.
Princess Flamina was drawn to Earth-Two due to the unintended consequences of a stratosphere plane which tore the fabric of space between that world and another wherin Flamina heralded from. Intending to send an army to raid Earth, Flamina encountered a sufficient force in the form of Wonder Woman. Flamina never returned as the breach had been repaired closing off the spacial gateway between two worlds.