How can you tell your card is this one?

Look at the bottom of your card: you should read HS 104/123 there. Its illustration is signed Kent Kanetsuna.

Which set does it come from?

It comes from the HeartGold SoulSilver set, released here on 10 February 2010.

HeartGold SoulSilver

Rainbow Energy HS 104/123

Name: Rainbow Energy HS 104
Brand: Pokémon

HSFRUncommon

It adds to your sale

€0.65

Your offer depends on the card’s printing, edition and condition. We check its condition when it arrives.

Versions of this card

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

HS 104HeartGold SoulSilverUncommonSelected printingYou receive€0.65

What you might be wondering about this card

How can you tell your card is this one?: Look at the bottom of your card: you should read HS 104/123 there. Its illustration is signed Kent Kanetsuna.
Which set does it come from?: It comes from the HeartGold SoulSilver set, released here on 10 February 2010.

When it came out

HeartGold SoulSilver landed here on 10 February 2010.

Every set, with both of its dates

What the card itself says

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

Retreat cost: 0
Number: 104/123
Set: HeartGold SoulSilverHS
Illustrated by: Kent Kanetsuna

Attach Rainbow Energy to 1 of your Pokémon. While in play, Rainbow Energy provides every type of Energy but provides only 1 Energy at a time. (Has no effect other than providing Energy.) When you attach this card from your hand to 1 of your Pokémon, put 1 damage counter on that Pokémon. (While not in play, Rainbow Energy counts as Colorless Energy.)Attachez une énergie Multicolore à l’un de vos Pokémon. En jeu, l’énergie multicolore fournit tout type d’énergie, mais une seule énergie à la fois. (Fournit uniquement de l’énergie.) Lorsque vous attachez cette carte de votre main à l’un de vos Pokémon, placez un marqueur de dégâts sur ce Pokémon. (Lorsqu’elle n’est pas en jeu, l’énergie multicolore compte comme de l’énergie Colorless.)

What to make of it

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
It retreats for free. You can pull it back to the Bench whenever you like, even with no Energy on it at all.
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.

Who plays it

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.