Board Thread:Event Discussion/@comment-76.90.220.1-20131030000703/@comment-24082239-20131030040515

You'll need about 40 SW your cards have the attack power but no defence so you'll be using on average 3 SW after lvl 67. But you can get to lvl 67 for free I believe after the first 2 days, if you can place your timing right I'm sure you can do it