Don't listen to Realo, that build is ass. You only need triforce, then get FH or Randuin's + Banshee's. Wit's End is, like, ultra-super-mega luxury. Your job is to CC, not do mad deeps.
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Currently playing: League of Legends, Chrono Cross.
Current Projects: Fool's Overture, CYOA: http://www.gamefaqs.com/boards/8-gamefaqs-contests/60143513