Board Thread:Questions and Answers/@comment-220.255.1.111-20131024044123/@comment-76.79.134.150-20131024183031

With the way pwr requirements are calculated in the new 7-cards raid FL scheme, the power efficiency of the cards aren't super important. I mean, you don't really get meaningful advantage for using a card with 800+ efficiency versus the one with 700+ efficiency. I tend to just use 3xraid + 4xhighestATK and that seems to be enough to rush ranks.

In term of how much ATK to pump, unlike Ody, you don't get screwed as much for not being able to use full scales. In addition, since you're not likely to be using the same cards from raid to raid, it is hard to keep ATK stable to match full-attack with no residual. That is, unless you know for sure you will always be using 3xPwr14 + 4xPwr17...etc.

This is different for Ody though, since you do get penalized for not being able to do full-energy attack. For Ody you'd want to keep energy at x200 or x100 increments.