Annihilargh

The Anihilaarg is an extremely powerful weapon used by the ancient Contemelia. It looks like a purple box with a red light inside it.

The Anihilaarg has the power to destroy an entire universe when activated.

Backstory
It first appeared in So Long, And Thanks For All The Smoothies, where Argit was send to obtain it by Incursion Emperor Milleous.

Later in the episode, it was accindently activated when Ben, Rook, The Incursions and The Vreedle Brothers were fighting to obtain it. It destroyed the entire universe, but Ben recreated it using Alien X.