How can you tell your card is this one?

Look at the bottom of your card: you should read SMP SM148/248 there. Its illustration is signed Naoki Saito.

Which set does it come from?

It comes from the SM Black Star Promos set, released here on 3 February 2017.

SM Black Star Promos

SMPJPPromo

We cannot estimate this card right now.

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 SMP SM148/248 there. Its illustration is signed Naoki Saito.
Which set does it come from?: It comes from the SM Black Star Promos set, released here on 3 February 2017.

SM Black Star Promos landed here on 3 February 2017.

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

The Japanese text is not available yet. Text shown: English.

Once during each player’s turn, if that player has 6 Pokémon in play, he or she may heal 10 damage from each of his or her Pokémon.

Have a look at what it does well, then at what will get in your way. After that you'll know whether it belongs in your deck.

A strength
No Weakness printed on the card. Nothing doubles up the damage it takes.
Keep in mind
None of the 5,392 tournament lists we have read runs it. That does not make it a bad card — it means we have not seen it on a table yet.

None of the tournament lists we have read mentions this card. That happens with a card that has just come out, or one players have not tried yet.