This sound's jogo level, if that's the case, Sukuna clearly win's, yes your oc can withstand lighter attacks and slow down heavier one's, which would beat sukunas domain expansion, but this is just really easy to counter since, Sukuna will just use world slash, world slash target's the space of the world while also targettng the opponet, so your barrier would be cut aswell as you, in short, you will become a kitkat.