Naljian Destructor

The Naljian Destructor is Level 20+ tech that can turn into a robotic version of what ever it sees. It can even form into one giant combination of everything it has seen. It will do whatever it sees something do.

It appears in Busy Box where it causes havoc everywhere. When Ben went near it, it transformed into a robot Ben. It even transformed into robot Humungousaur when Ben transformed into Humungousaur. The Naljian Destructor even turned into robot Spidermonkey when Ben turned into Spidermonkey. When Kevin went near it, it turned into robot Kevin and even into robot Kevin's mutation after Kevin's ID Mask was broken by it. When Gwen went near it to reason with it, it also turned into robot Gwen and tried to meditate. It's also evident that it will mimic a move or an attack another will do but in a more mechanical way, for example, it threw pink, metal discs for mana as Gwen did and it threw large, red and hot balls for Swampfire's flames. It can also look like one person but use another's different powers as seen when it turned into Octagon Vreedle and used Swampfire's flame balls. Around that time, the Vreedle Brothers arrived identifying the technology and tried to claim it. As Ben turned into Swampfire, the Naljian Destructor also turned into a robot Swampfire. It even managed to turn into each of the Vreedle Brothers as they baited it to their side and made off with it. Moments later, the Vreedle Brothers returned stating "He learnt that he really likes destroying things" and that it has become too powerful for them to control and left it on Earth. The Naljian Destructor then transforms into an amalgamated version of Humungousaur, Spidermonkey, Swampfire, the Vreedle's weapons and Kevin which then went on the attack. During the fight, Ben, Gwen and Kevin managed to find out its weakness is its core.

After Lodestar manages to remove the core, the thing fell apart. When Ben was about to permanently destroy the core, a cosmic being appeared out of nowhere. She told them that the device was a toy for her daughter. She then explained that it was a dangerous weapon to them because their species was too young to properly use the Naljian Destructor. The mother of the child reassembled it and left shortly after, stating that it was clearly marked "not for children under three million years old."

Trivia

 * Even though the cosmic being called it a toy, it's named the Naljian Destructor.