@melchi Jokes aside, what is free form though? I always find myself confused with how mane terms people invented for this. Is magic from Avatar Aang a free form? What about one in HP or LoTR? Technically, there are no rules in Avatar and LoTR, so isn't it free form?
Story Marc has a video about the differences, but you sorta got it right. HP is less free form though because they have to use ingredients and specific incantations.