See TFT Tab. https://docs.google.com/spreadsheets...#gid=478095095
UT procs are included in the TFT theorycraft. Artifact traits or legendaries are not.
Even though Vivify is better by a long shot, you could still cast TFT-ReM during downtime to get your HoTs out there and not waste the TFT usage. When they inevitably jump, you may also proc new full-duration ReMs with the Artifact trait (forget what it's called right now).