Board Thread:Questions and Answers/@comment-5937704-20130211151040

I have 25 cards in my collection at the moment of either 3, 4, or 5 stars. All but 7 of these are fully maxed out. Right now I have 180 ATK pts. The total power needed for all 25 of my cards is 233. But my question is, do I need 25 cards and do I need 233 power? Does it make sense to have cards that total say, 90 power and be able to battle twice or do I need to power myself all the way up to the 233 power? What's the general rule of thumb for situations like this? 