The thirteenth episode of "Jujutsu Kaisen" features Yuji's battle with the stitch-faced curse, Mahito, coming to an end by stalemate.
Despite looking merely like a human being, albeit one covered in stitches, Mahito can deform his body at will, growing much larger, then smaller, and elongating his limbs.
At one point he swells up into a figure that reminded me of the stay-puft marshmallow man from "Ghostbusters". Yuji ends the fight with a massive punch to his enormous middle, but Mahito doesn't die. He merely retreats.
There's some more stuff in this episode about Nanami's daily life as a stockbroker, that I didn't really understand. It didn't teach me much about it.
Then there's some typical anime soul-searching from Yuji, which, of course, just ends in him resolving to be an even bigger good guy than before.
I've kind of lost interest in this show again, and don't know if I'll continue watching it.