Serella

This is kinda redundant because she's already used Bijuu Bomb, which is the technique Rasengan was based off of. Your welcome for engagement, but this really isn't thrilling stuff at all. Also Boruto's Uzuhiko definitely is stronger than anything Naruto can use. The uzuhiko hasn't really been proven to have a scaling cap, while a Rasengan can only be as powerful as the casters chakra allows. While the power is more conditional, I feel like a power that scales infinitely upwards in increments based on the ROTATION OF A PLANET is hard for even Naruto to beat, who at most has been proven to have moon-planet level durability.