Tailiz was first seen in the 1st episode I Got a Watch With...12 ALIENS! and shot the spaceship containing the Omnidewtrix because his ship was being attacked by the watch's protectors. He is known to be patient when it comes for something he wants for himself to be reconstructed or made.
Tailiz eventually discovers the watch is still functioning under Cassie via the last confirmation by his remaining engineer in Episode 3. His kind has conclusively been confirmed to have been created when a Heatblast creature and Upgrade creature went to the planet of fusions which combined them both, then made a vast majority of DNA samples.
1st appearance I Got a Watch With...12 ALIENS!.
How Does This Do? where he is informed the Omnidewtrix is on a humans wrist.
LockneCassie where he is shown to have captured the alien hunter.
Last appearance for Season 1: Captured Tai.
In the flashbacks of A Startling Revelation, it is revealed he didn't care for villain awards, but became a villain to teach everyone a lesson what life would be without fire o technology. He also met a Loboan who he developed feelings for during his days as a pupil under Zuth.
He has been described by few aliens as unique, unexpected, and very clever alien who has a deceiving personality useful for his advantage. Tailiz's creation of clones was unheard of until his empty ship was found with the in-stasis minions.
In his short amount of time in Fire Mayhem, he learned about his girlfriend's death, which branches off from the ending in A Startling Revelation and makes it non-canon. It is shown in the very episode that Tailiz has a strong sense of justice and payback for the infliction on the ones he loved.
He has never told where his own kind lives perhaps to keep hidden where it is from greedy aliens. Ironically, he is the evil Villain who wants the Omnidewtrix.
In Cassie 12: Get Redigitized, it's been revealed he has a counterpart who has a stranger name than his for being: 'Taizo' or the form of 'Tia' which is what 'tai' is supposed to be pronounced. It also was revealed he can go to different extremes varying on counterparts.
He is mentioned in Cassiewolf!
In Read It or Weep It, he has a strong connection to Santanio therefore keeping him a low profile and preventing any other aliens from looking him up on the internet by making a filter that blocked the usage or words closer to Santanio's name spelled out in alien language and his very appearance in photographs are blurred out due to a cloaking device attached around Santanio's torso. He threatens Santanio at the end of the episode "Next time this happens, there won't be a next time." indicating he would tell The Feeteration and Astrodactyle about Santanio's livelihood if a mistake like this is done again.
In Outta Control Ghost Crab!, Tailiz was revealed to have sent Santanio to make sure that Losdagioless succeeded in separating Cassie's entire spirit into one of her aliens to separate her from the body so he could remove The Watch from her wrist. However, at the end of the episode, he comes back to find things did not go the way he had planned.
Other Appearances in Movies
This is a Part of the Cassie 12 Franchise