I originally saw the image on google images, but I went back and found the site it was on. Updated opening post with link.
At first I had thought of the card as a supporting source of quanta in rainbows that don't use much water or light. It generates a good amount of quanta, but it's a good amount of generation lost if destroyed. It couldn't be relied on as the main source, only a boost, since it costs light quanta to use and doesn't give any back. But it could still lower the total number of towers, allowing decks to squeeze in an extra utility card or just trim down a bit.
However, guolin suggested decks using this card powered by pendulums. This would be the opposite of above, helping decks that use more water or light quanta. A few water pendulums could give enough quanta to play a raindrop and then continue producing for an earlier permafrost shield. Supernovas may not even be necessary. Again, allowing more deckbuilding possibilities.