Some 60-card creature decks have been known to play twelve, fourteen, or even more creatures that cost one mana
Check print sharpness (fakes look blurred), card texture (authentic holos feel distinctly smooth), card thickness (fakes feel wrong), back color gradients (fakes use flat uniform blue), and Japanese text spacing (fakes show inconsistencies)
Your Spine of Ish Sah
Thats nothing to scoff at and I am planning on picking it to see how I can fit it into decks with Dakrai ex, Weavile ex, and Weezing
If you are interested in the full list, you can check the official Pokmon banlist here
You wont find many people willing to argue that point, and for good reason its still going incredibly strong after 26 years