Luckily with the new sets, you can see the language more easily based on the set symbols:
Spain:
Latin America:
But for any other species collectors going for all languages, who can easily distinguish between Spanish and Portuguese/Italian these days like me. Another way to distinguish between the two Spanish cards seems to be the commas for Spain vs dots for Latin America:
Spain:
Latin America:
Might be useful when promos start to pop up.
Only the promo Trainers will probably be hard to distinguish between the two. And Energy cards will likely have no difference, unless they’re from a certain set with the earlier mentioned ES vs LA.
Greetz,
Quuador