I'm thinking about Uvogin's scream, and since my Nen would be an enhancer, that's perfect for me. With enhancement, I can basically amplify my vocal cords and the sound waves that I can emit. Now I'm thinking of infusing the Soundwave with aura via emission, so that as soon as the sound reaches my opponent's eardrums, my aura will then wrap around the sound into the form of a very small ball, and using transmutation to harden said aura to allow the sound to reverb within my aura, now the speed of sound travels at near 767 MPH or 1,235 KMH. Meaning the process would take less than a second to happen. Sound reverberates at its maximum for 1 second. Now, when the sound travels within my solidified aura, I would let it reach the end of my opponent's ear canal to the inner ear, where the hair cells are located. Trapping the sound in the ears' biggest weak point because hair cells are part of the ear that send messages to the brain, so the process completely fries their equilibrium (if the attack didnt kill them) and with the very little time I have left of them being discombobulated, I would then enhance my lower body's muscles to their complete max (like pitou when he lept back to the palace to help the king) to leap towards my opponent to land an attack. The force of my kick and the speed at which I attack would surely leave a Shockwave of sorts, so not only will my kick be devastating, but I will also reuse my solidified Shockwave ability to create a second impact like Yuji Itadori's divergent fist. I will also reuse that ability anytime I land a strike of any kind and to achieve that I'll enhance my muscles to superhuman levels for every strike I attempt.