Here is the old discussion thread (the first post has since been deleted): www.elitefourum.com/t/pre-base-set-test-print-prototype-blastoise/23779/1.
The thread in general caused a lot of drama because OP was disguising a “plz buy this from me for $$$$$$$” as a “does anyone have info about this card”. I’m sure there are a fair few people interested in the card itself but it’s going to be hard to find good answers any more thanks to that.
OP posted a picture of a supposed uncut MTG sheet showing the Blastoise on here: www.elitefourum.com/t/pre-base-set-test-print-prototype-blastoise/23779/183. I’d advise you take that with a pinch of salt though as it may well be an altered image.