Is there any difference between Variares blue phantom and Variares (the original one) except their colours?

No. Also, there's a whole subforum dedicated to answering these types of questions. They don't really belong in this part of the forums.

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Cincinnati-based Organizer, and owner of every single currently released TT Burst bey part in at least one color. Hard to think of anything I don't have from MFB either...