Is "comma" necessary here?
Native speaker’s answer
Rebecca
Yes, the comma is necessary here. Commas are needed to help mark a natural pause within the sentence when speaking. If you listen carefully to the video, you will hear that Blossom pauses after she says "Except for Buttercup." It's a very brief pause, but it is there. If the comma wasn't there, then Blossom would not have paused briefly in the sentence.