Board Thread:Event archives/@comment-11264457-20131009205631/@comment-13248161-20131017145810

You're missing two key factors in your numbers. Each card at max level gains a 30% ATK bonus, and at Transscan or Max Evolution another 15% ATK bonus. This creates a 49.5% boost (the two bonuses multiply on each other, they don't just add) to the ATK stat which is then boosted by the weapon bonus.

Notably, this gives Hound a higher final ATK score (160095) than Optimus Prime (158559) even though his weapon is weaker, making him the #1 card in the game.