I've played over 600 slark games in my career and am currently sititng on 4.7k mmr. This hero is honestly a dream for escaping any form of "elo hell" if you can learn to utilize him correctly and this build aims to help you do so in the simplest manner possible. My playstyle is geared towards taking fights around the 23-25minute mark and snowballing from there into the late game. This build is focused heavily towards that style but caters for people who wish to begin fighting from minute 12-14 onwards also.