Nickelodeon All Star Brawl 2's Story Campaign has original writing for it's characters so it means these characters get original dialogue and even some interactions towards the NPC's and bosses.
In this video, the last airbender has to save the universe.
Like the other campaign interaction videos i posted, there was some weird bugs with the audio towards Vlad, Clockwork and Aang. So i had to edit the lines into the video later.
Up next is the currently as of this video's release, final Avatar character to do and that being Zuko.