Once the cold war ended and Western support dried up, his power faded.

Gradually the power of the communion faded, and he made ready to go.

The poem was still right and true, but even as he read the words in his book, the power of them faded.

Her powers fade immediately in the presence of direct sunlight.

It took maybe five seconds, and then the power of the potion faded.

If the energy is emptied, the powers will fade away.

This power faded over time, leaving her with a need for glasses.

It may last ten years, but more likely the power will fade before then.

Her powers faded away at the end of the day.

However, the effect is only temporary; powers fade after a short while.