Talk:Bo/@comment-25493125-20150218223452/@comment-17760674-20150218230701

Efficiency = target stat (max attack, max defense, total, etc) divided by spirit

You know how you'd rather use a card with 6000 attack and 15 spirit than a card with 5000 attack and 16 spirit in your attack team (assuming that their skills and skill levels are the same)? Yeah, that's what efficiency is, but put into number format xD