Nunu Guide - AP Laning ftw

My Mordekaiser Guide: http://www.mobafire.com/league-of-legends/build/diffs-in-depth-winning-mordekaiser-85674

My Mordekaiser Guide: http://www.mobafire.com/league-of-legends/build/diffs-in-depth-winning-mordekaiser-85674

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I've recently been learning Amumu as a jungler and got the opportunity to play as him in a Ranked.
I've attached the download link for the replay below:
http://www.mediafire.com/?64kezp11m1dyqj6
If you guys could give me feedback on what I could've done better, please tell me.
Thanks!
If I could get someone to carry me out of ELO hell, it would be even better :D