The Black Beetle was a Shen Gong Wu. It was resistant to all forms of heat at all temperatures.
Like its name stated, the Black Beetle was a large metallic armor in the form of a beetle. It possesed red eyes and golden markings on its back.
When this Shen Gong Wu was activated, it coated the user in a heat resistant black body armor and protected the user from extreme heat. It could also take the form of a heat-resistant raft when used to protect more than one person.
It was first revealed underwater in a sunken old vessel. It was won by Omi in a showdown against Dyris. It's first (and only) use was during the great spider conflict, where the monks Dojo and Chase Young used it as a heat-resistant raft to avoid the intense heat of the lava intended to kill the giant spiders. The Black Beetle was also amongst the Shen Gong Wu stolen by Jack Spicer, Hannibal Roy Bean and Wuya, and after the showdown between Omi and his robot mother, it was stolen again by Wuya, who would posses it until the monks took it back.