Since people are actually rating this guide, I guess I should write a proper guide for him.
Early game is your worst time, farm up disregard team.
Mid-late game is your game. What you want to do is lure some people and run like hell. Hopefully they chase you and soon, you get a rampage just running away.
What you should be wary of: If the enemy has magick stick, try not to spam skills. Also, becareful of burst damage until you get a heart. Bristleback has 2.2 str gain and 2.8 int gain so I dunno why he is a str hero LOL. He's overpower and valved.