If the entire card face looks completely mirrored or lacks depth behind the text blocks, it is highly likely a counterfeit
My personal favourite of this is Rafiki, Ethereal Guide and Tigger, In The Crows Nest, for their fantastic expressions
Judge promos are usually worth much more than their original printing since they have such a restricted release, and they come in very limited quantities
Theres enough of them to make a theme deck for Pioneer or Explorer, but I doubt it would be very playable (although by adding just Card not founds and Card not foundes you could definitely steal some games).
Copies are selling for more than most Double Rares, thanks in part to the fact that 151 was a banger of a set that fans are still excited to master years later
Well not exactly, since it doesn't double tokens, just counters, but pretty solid to have that on a thing that also taps for 3 mana of any color at least