Robotic Lions Over A Flying Bison?~~ Voltron...
You were off. Your family was known to have been an advanced generation of benders, mixing bloods of earth, air, fire, and water, but you were.... ah, how should I say it? Yes, a special case. Your were the avatar. Not exactly though. Able to bend Blood, Lightning, Metal, and Wind, but unable to bend the forefathers of it. Deciding to stop hiding, and help the Avatar, you follow on the journey. However, you did not expect 5 robotic lions, and their owners, and the avatar team to fall for you. Good luck .-.
I feel accomplished to be writing the first crossover with Voltron and Avatar, considering how the animation art is the same and how similar the characters act