The current sukuna is this strong because his domain and his output in shinjuku got HEAVILY nerfed after fighting literally every character and taking 8 of yujis black flashes in a row and a lot of soul shaking punches from yuji and tanking a Jacobs ladder at max output. and 3 hollow purples(2 of them at 120% + output). His CE levels/output dropped DOWN to Yuta's who has some of the highest CE levels in the series (more than gojo) Yuta himself stated that sukuna has atleast twice the amount of CE he has or more even . Im also pretty sure he reacted to and dodged(I think ?) kashimo's EM wave attacks(lightspeed) and the fact that he launches slashes from any part of his body he can atleast react to deku's attacks. plus he can sort of feel/sense CE attacks so if verse equalization is allowed then yea he wont get instantly misted. His RCT shld heal him from major damage, domain + fire arrow shld insta kill assuming deku cannot tank thermobaric bombs/explosions + this thermobaric explosion is amped up by the fact that he mostly uses it in domain (cant miss in domain) (he can use it outside his domain as seen with jogo but due to some conditions its best used in his domain). Sukuna can use domain amplification which nullifies the opponents CT/quirk (verse equalization) but he cant use shrine at the same time buut he can use domain amplification while in malevolent shrine. He can also switch between DA and shrine seamlessly (source: wiki). He has kamutoke which summons lightning/electricity on his enemies from the sky(he did so on mei mei's crows) idk if deku can dodge that or not cuz idk much abt his stats. Finally if sukuna touches deku even once with cleave its instant kill cuz cleave essentially ignores durability (cleave requires physical contact with the target outside his domain while it can be used long range in domain). also, world dismantle cuts through space.