The only card I'm aware was ever printed with the wrong type was a Dialga, so what you have is likely fake. Check you card for other errors, like typos and missing accent marks, and compare the fonts to other images of the card. It's also not uncommon for the type and energy orbs on fakes to be highlighted from the wrong side as well, so make sure those are highlighted from the left.
If you're still unsure and you have any way of photographing or scanning the card, feel free to share and we may be able to point out more of the tell tale signs. You can attach it by choosing "Go Advanced" and clicking the paperclip next to the smilies icon.