The Ultimate Weapon Replica - Danger! Could Cause Mass Destruction

Once used to summon the Six-Toed Beast, also known as Meowthra, the Ultimate Weapon was responsible for the Incident of 2017 in which Ninjago City was almost destructed. It was also used by Lord Garmadon to destroy all of the Ninjas' Mechs. The piece in display is a replica; the original was fortunately dropped and smashed.