From what I can tell, this card isn't a fake. The energy symbols are the same size and the Pokemon in the copyright has the e symbol. What other ways are there to tell and how much would this card be worth if it's real?
Yeah, it is a error when printing them. Pop 5 mew holo is also like that. I think the corrected versions are harder to get......Could be wrong. I know I have a error and correct mew pop 5 and the errors are easier to aquire than the corrected as I have never seen another corrected version of the mew.