Zionix
AKA Ponkster
So much this.while I agree that Noxious is easy, I wouldn't go as far as say it's for Beginners. I expect a Beginner character to have 50/50s or some incredibly good and easy to use tool to open up an opponent (like Takeda's NJP), while Reptile still has to do staggers as he can't live with just 50/50s, I agree though that he is often forgiven for not respecting - frames.
Unbreakable is character that can jump for days and 50/50s to open opponents up its extremely easy offence.
Characters that require staggers and mix-ups within strings are more complex and require an understanding of frames. They are Normal from the get go.