While Sukuna was able to penetrate Gojo's Limitless technique with his own Domain Expansion, he wasn't able to use his cursed ...

Sukuna possesses the power to cut anyone and incinerate them, as well as heal himself and others using the reverse cursed technique. He can also summon Mahoraga and use the Malevolent Shrine ...

During Sukuna's possession, Megumi observed and experienced various shikigami techniques, including Max Elephant’s water manipulation, Mahoraga ... he repeatedly used his Shrine technique ...

This question has been asked by fans numerous times given how Sukuna had already tamed Mahoraga and the death of the series' antagonist might have transferred his powers to his host. However ...

Megumi never got to explore his full potential in JJK. Adult Megumi's full strength would be interesting to see.