Enemy: Fire will definitely work! cause people are weak to fire! Jojo: *Theme plays*

i- youre not wrong-

Jonathan: Burned house and burned hand (Nothing happens)
Joseph: Burned by esidisi and been in a go***mn volcano (Only loses an arm non-fire related)
Jotaro: Drowned in gasoline and burned alive (Uses dig! It's super effective!)
Josuke: Burned down rohan's house, Got hit with multiple explosive bubbles (Hair still of fleek)
Giorno: Lighter to the face, Hid a lighter inside his hand (Like a boss (⌐■_■))
Jolyne: Covered herself in gasoline to warm herself up (Like father like daughter)
Johnny: Covered in gasoline, burned even his eye (This fire ain't big enough for the two of us)
Josuke: (I haven't seen it yet, But I wouldn't be surprised if he was fireproof as well)