How can you tell your card is this one?

Look at the bottom of your card: you should read M6 37 there.

Which set does it come from?

It comes from the ストームエメラルダ set.

ストームエメラルダ

Name: Onix M6 37
Brand: Pokémon

M6JPCommon

We are not buying this printing at the moment.

Check the number and illustration against the card you are looking for.

How can you tell your card is this one?: Look at the bottom of your card: you should read M6 37 there.
Which set does it come from?: It comes from the ストームエメラルダ set.

Its characteristics and effects in play, with the original text when available.

During your opponent's next turn, this Pokémon takes 30 less damage from attacks.working translation次の相手の番、このポケモンが受けるワザのダメージは「-30」される。