The pah-wraiths were a group of wormhole aliens that were banished and imprisoned in the Fire Caves of Bajor. They were the enemy of the Prophets and sought to reclaim the Celestial Temple. They usually appeared as fiery wisps.
The Pah-wraiths had similar abilities as the Prophets. They could communicate to corporeal beings through "visions" and had the ability to possess corporeal beings. A possess individual would often have the irises of their eyes turn red as well as a slight change in their voice, though these changes were not mandatory as a pah-wraith could possess an individual with no obvious external sighs appearing. At least some of those possessed appeared to have telekinetic powers. (DS9: "Shadows and Symbols", "The Assignment", "The Reckoning", "Tears of the Prophets")
In an alternate universe where the Dominion won the Dominion War, following the defeat of the Kosst Amojan in the Reckoning they then had their "fates sealed" by the Prophets. (TFS: Spectrum: "The Final Prophecy")