Yep, but it can also be 드래곤[스] (deu-rae-gon-[seu]). It's the Koreanization of the word "dragon[s]". You can't directly spell "dragon[s]" in Korean so it's like that. Pronounce it, it sounds close to "dragon[s]".
So 즈 sounds to me sometimes like a j and sometimes like a z. Or maybe even the s in "vision." Should I be just thinking of always putting my tongue in the same place for it rather than focusing on anything else?