Requirements: kekei touta ( fire,wind,lightning), can only be used by a full-blooded Uzimaki clan member;
Hand Seals: boar, dragon, horse, rooster, dog, monkey
Jutsu name: stellar release - hyper-nova coronal mass emission.
Description: Using the electrical charge of your lightning you mold your chakra into charged particles that resonate faster than the speed of sound, the intense heat of your fire excites the particles molding them into gaseous elements as well as charged particles causing what looks like a star to form in your hand, finally use the great pressure of your wind to expand the star to a great size , then reverse the pressure causing it to collapse on itself, once this happens an explosion with a 5-10 mile radius engulfs everything in it's path.
Drawbacks: you must have the kekei touta specified above, takes anywhere from 30 seconds to 2 minutes to complete the sequence ( and in a shinobi battle that's a major disadvantage), need to master nature chakra and posses the ability to mold all forms of chakra in perfect balance, leaves you badly injured and in stasis for unknown amount of time. Must only be used as a last ditch effort.