|Elemental Sound Dragon|
The majority of the Elemental Masters unlocked the ability to summon their dragons at this point in time; however, Jacob and his dragon were not seen. Instead, he unlocked his dragon and flew back to Ninjago off-screen.
- The Elemental Sound Dragon is notable for being the only Elemental Dragon whose existence has been verified but who has not appeared on screen. Presumably an Elemental Amber Dragon also exists, but Skylor never displayed the ability to manifest it, and other characters who seem like potential candidates for summoning their own dragons have not done so either.