This specific build is for a Hybrid Batman Prime. It allows you to be VERY aggressive while having a lot of survivability. Because of Batman Prime's ability to reduce CD with auto attacks, his damage output can be quite devastating. He has great mobility which makes it easy to achieve early ganks and counter ganks from the jungle. In team fights he becomes an essential tool because of his versatile ultimate to break the vision of your opponents while also granting himself increased movement/attack speed.
AMP: Jungle Sustain
As of right now, there isn't much value investing into his Q. It has a stop animation for your hero and doesn't provide as much harass as a W+E combo would. Maxing out the damage output for both W + E makes Batman an EXTREME annoyance for the enemy team. It provides you the capabilities of early tower dives as well as faster clear times for your camps.
This guide is an insider look to my HP conversion build. With it, you can tank and spank like no other. Mommy knows all about spanking :3
Enjoy!