Board Thread:Questions and Answers/@comment-5937704-20130211151040/@comment-5933544-20130211224442

I've noticed that Steam Chaos Casino only lets you use a certain amount of Atk Pwr depending on your deck's necessary Pwr.

You generally do want to invest the most points into Atk Pwr with exceptions:

-> If you plan on being pure/mostly energy player

-> If you plan on being a Defense Leader in the future

-> If BR/Raid doesn't interest you (Similar to reason 1)

Having more Atk Pwr for Battle Royale and Raid Events will increase your PP/Ranking efficiency as you will be able to fit in more Raid attacks (Raid) and earn more BR pts (BR) and will thus eventually let you advance farther with less PP spent.