Marauder Iron Will build?

http://www.pathofexile.com/passive-skill-tree/AAAAAgEBAecCcQSzBS0FtQ6tEuEUIBRNFHUW8xjbGS4aOBpVHNwhYCSLJjwn7SmlLKctRy3SL50wfDWGNug26TgbOlI6szrYPQ9AoEOcRmlHBklRSn1QQlBHUFBRR1RJVw1YY1ivWfNaK1uvXfJfP2BLYSFko2aeZ6B0QXTtdPF313rve9d8u38rf8aE74d2iEKMz419jb-P-pAKkFWRzpHPnaqeuZ7NogCiLqPypzCnXKeEqn-quKyqtMW5zbndwBrBxcLsxBXE9sWKxtjN6tIh1I_ZYdvn3Q3fv-Nq5BHnUulz6xTsGO8O8B_yHfIv9kj60vzF

Would this build work?

It's an interesting idea, but it seems to me like the passive points have been used a bit inefficiently. All that stuff on the right, for example -- did you go on past Iron Reflexes just to get Pain Attunement and a little extra critical? I wouldn't think PA would be worth it.

I might also think a Templar could be a better choice due to starting position. I'm no expert, though, so take this with a grain of salt.