- "It's purification in Aramaic, ruination in ancient Greek and in the lost Ga-shundi language it means both."
- ―Wesley Wyndam-Pryce[src]
The Tro-Clon was a "confluence of events" which would bring about the purification or ruination (or both) of mankind. Its arrival was announced in the Nyazian Scrolls.
It was initially assumed by the Angel Investigations staff that the Tro-Clon is was single event or an individual, though they soon learned that, in fact, the Tro-Clon was a confluence of events culminated with the rise of Jasmine, as explained by Skip. According to him, there was a series of events going back years that had all been guided by Jasmine, working as a Higher Power, towards the single purpose of bringing herself to Earth.
- Fred and Lorne switching dimensions (Lorne's spell was necessary to "activate" Jasmine in the amnesiac Cordelia).
- Angel's departure from Sunnydale to Los Angeles.
- Cordelia moving to Los Angeles and receiving the visions.
- The death of Alonna Gunn.
- The raising of Darla (and Angel's completion of The Trials to give Darla "a new life")
- Birth of Connor.
- Re-awakening of Daniel Holtz
- Holtz bringing Connor to Quor'Toth and Connor's return to this dimension "of age" to mate
- Wesley and Lilah's relationship. (It was necessary in order for the Beast to find Mesektet).
- Cordelia's demonization and subsequent rise to a heavenly dimension
- The reign of The Beast
- The temporary return of Angelus to aid in the destruction of The Beast.
- Rise of Jasmine