User blog comment:Godofcyanide/TFL Domination: Addendum - The Truth About Deck Power/@comment-11668059-20130722082455

Part2:

So, choose a target boss that you want to hit most (I choose which is the strongest on event) and calculate its attack power than calculate all your cards lives by

" health / ( boss attack - def points of card ) "

Considering little variety of attack power if you find this value 3,1 take that as your card life is 3 hits. If this value is 7,5 your card will live 8 hits long. 6,2 means 7 lives etc.

(Note: Choosing right weapon secret is revealed on this formula. Weapons really change def points. Just see the secret ;) )

And when you precisely calculate all your cards length of life to hardest bosses do what GoC says above. You will survive, win war and be proud!