Board Thread:LOC General Discussion/@comment-5922049-20130702231005/@comment-5428123-20130704025426

@Congo1 I've actually done some tests in raids, and I've found that when two cards have equivalent power requirements, the card with higher attack will almost always do more damage, and I've done many trials. That being said, I've really only tested using Common and Rare cards, due to ease of access.

I have done limited tests with Ultra Rares, and found that they will almost always do more damage compared with Rare and Common cards of equivalent power, even when the Ultra Rare has lower attack. I've also compared Ultra Rares to each other, and have found inconclusive evidence that power has any effect when Ultra Rares are used.

Again, my tests with Ultra Rares is limited, but when Common and Rare cards are concerned, attack means everything.