Jura and Toph

As Aang stood tall after dealing the final blow to Cobra, his legs began to feel wobbly. He saw that both Natsu and Happy weren't in any better shape. "Natsu… My body doesn't feel so…" Happy weakly said. His wings disappeared and Natsu fell in a heap to the ground.
"Damn it…" Natsu cursed.
Aang followed suit as he was on his hands and knees. 
"That poison is taking its toll on us." He said. "I can barely move. My arms and legs just won't budge."
"I can… barely move… either…" Natsu said. Suddenly Nirvana began to move and this was a very bad situation because of Natsu's motion sickness. His face looked sickly while his eyes were white ovals with blue hazes underneath them. He looked towards Aang with puckered lips. "Plus… I'm on transportation…" He whined.
"If you're going to hurl, do it away from me then." Aang said while giving Natsu an annoyed glance. But he noticed a shadow towering over him and he was terrified to learn that it was the beaten figure of Cobra.
"You damn brat!" He angrily seethed with a weak voice. "By the pride of the Six Generals… I will defeat you!"
"You've got to be kidding me!?" Aang fearfully exclaimed.
Cobra's dragon hand was leaking poison magic as he glared towards Aang's weakened state. "That's it, screw Brain and his plans! Screw your whole damn world! I'm gonna kill you right here you pitiful excuse for a pacifist!"
Aang was glaring back but he couldn't get up to fight this time. "No… I can't move…"
"I can hear it, the end of the Avatar's life. The time of the Avatar is finished!"
Cobra raised his hand to deal the final blow but before he could finish Aang off, an explosion of magical energy was heard and Aang braced himself. He saw that Cobra wasn't able to land an attack because he was shot in the back by a blast of green energy. He and Natsu are shocked to see Brain aiming his staff at Cobra's back.
"That's enough, Cobra." He calmly said.
"B-Brain!?" Cobra stuttered while in tremendous pain. "What are you…"