Crazy Diamond. And it's not weird, it's the most useful Stand.

[He frowns deeply. Hunk just insulted his friend and if Josuke were here and Hunk weren't cool, Okuyasu would give him a smack for badmouthing his bro.]

I dunno. They'll all different...but the kid that said he was an alien was weird. Nothin' too weird about shapeshifting, though.