All chou z beys up until dead hades are fake. Soon fake chou z spriggan and valkyrie will come out so watch out for those. Below are what you should watch out for to avoid fakes:
price (under £7 its bound to be fake)
box (most sellers show pics of the box, if on the top right corner it says S3, MQ, N or a flame symbol its fake should say takara tomy to be real)
from china (unless its a trusted seller which u can find out about on wbo)
Wrong parts as sometimes the fake is shown on the listing pictures (normally driver and disk are wrong from the original parts)
The main thing is do your research! Its not hard to find what a real takara tomy beyblade of the one you want looks like. Only use the trusted sellers theres a thread continually expanding on here which shows the cheapest beyblades from japan who are trusted sellers. Buy from them to avoid being scammed and there prices are very good as well.
https://worldbeyblade.org/Thread-Selling...ls-on-eBay