Sage Technique: Spiralling Serial Spheres

Description
Rasenrengan is simply two Rasengan used simultaneously, with the addition of senjutsu chakra. This technique drastically increases the power of the attack due to its great compression and chakra increase. The technique is essentially lethal

Drawbacks
A major drawbck of using this is that the technique consumes great amounts of chakra and even staminer. The technique can easily use enough chakra to take naruto out of sage mode if he is near his limit.