Galvan Prime, or Galvan Mark III, is the third Galvan Prime in history.
In the Showdown Reboot, Malware succeeded in absorbing Galvan Mark II, but Azmuth evacuated the Galvan population just in time. With the entire arsenal in his hands and the absorbed body of Ben, Malware became a dangerous threat. When Malware left the planet, it became a barren place. Ben then became Feedback and shutdown Malware once and for all. So, Galvan Mark III is technically Galvan Mark II, but the Galvan's had to rebuild all cities.
They are well above Level 20 tech.