Larian Studios Forums Divinity II The Dragon Knight Saga / Flames of Vengeance (English) Divinity II - The Dragon Knight Saga Which Version Do I Get (I Have Original ED)

I'm confused as to whether I can get Flames of Vengeance and have all the nice improvements, or I have to get the Dragon Knight Saga to get those as well as Flames of Vengeance??

I looked back through the forum and didn't come across a question such as this.