6.88 7CO\'s Quas-Exort Invoker.
Invoker, one of the strongest hero in game if played well. I hope this guide will help you to learn a quas exort invoker, which in my opinion are the best build. It will focus on summoning 2 forge spirit on level 8 so you could start giving pressure on enemy towers and heroes soon as possible with their armor melt per attack. Once again, he\'s the strongest hero in game if played well, yet a squishy hero and the hardest-ish hero in game (besides meepo micro difficulty).
Updated to 15 July 2016.