How can you tell your card is this one?

Look at the bottom of your card: you should read RR 112/111 there. Its illustration is signed Mitsuhiro Arita.

Which set does it come from?

It comes from the Rising Rivals set, released here on 16 May 2009.

Rising Rivals

RRKORare

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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 RR 112/111 there. Its illustration is signed Mitsuhiro Arita.
Which set does it come from?: It comes from the Rising Rivals set, released here on 16 May 2009.

Rising Rivals landed here on 16 May 2009.

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

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

Flip a coin. If tails, Pikachu does 10 damage to itself.

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
Retreat cost 1. One Energy to discard and it is back on the Bench, which matters a lot on the turn you need to swap attackers.
A strength
It is a Basic Pokémon. You can put it down on your very first turn, with nothing to evolve through.
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.
Keep in mind
Weakness Fighting ×2. Against a Fighting Pokémon, apply that to the damage it takes — it climbs fast. Of the 5,392 tournament lists we have read, 1,212 run at least one Pokémon of that type.

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.