Literally impossible. Sukuna can’t use DE at all anymore, lost Mahoraga, lost Agito and its components, and burned through enough CE that he has slow healing now. Actually how would Sukuna even avoid being one shot by Kashimo’s DE? Kashimo’s gonna look hella fraudulent if he doesn’t even have a DE
Sukuna still has a trump card saved. Something that is apparently a bigger threat response than Maho and his DE.
Also, look at this fight narratively from a couple of perspectives:
1. Gege is heavily inspired by Hunter x Hunter. The one-time boosts in that series are:
- Kurapika gets massively more powerful when he fights the Phantom Troupe
- Gon getting his adult mode against Pitou, which straight up elevates him to Meruem's level
If Kashimo's boost is similar to any one of those, he's going to get boosted to Gojo/Sukuna level.
2. Sukuna is holding back a trump card. Kashimo is holding back a one-time CT they've never used. The fight is literally set up as a battle of those hiding trump cards.
It's going to be a high diff for sure.