Assuming you play with the following rules:

 1. You can't end on a power card (+4, color change)
 2. If you can't play and draw a card you are allowed to play it immediatly if that card does match

If you're holding a power card and you draw a card since you can't end on a power card, can you then play the power card instantly (in the same turn like rule 2) since you have 2 cards now?