Erika 2 Jump Abuser Mapping Only. NOT RECOMMENDED FOR NEWBIES. 

build code : Db6Miz3REe+7qgAAAAAAWw==
Strategy code : DhR2aT3UEe+7qgAAAAAAWw==
How does this build works: its all about the stacks of jumps, and the 2nd mod on our weapon. This stacks infinitely , thats why even tho in the build we got 0 damage on all of our gear and trees, we are still doing maximum damage possible on hit. So our goal is to scale jumps and survivability only, no damage no crit no curse .
This Gravel mechanic need to be changed or nerfed, its stupid.
Mapping : 10/10
Survivability : 10/10
Bossing : 0/10 , cant do shjt with bosses. We need monsters around to chain our skills and generate infinity damage, with only 1 monster around we are fucked.
The problem of this build is not how to do 8-4. its HOW TO GET TO 8-4. you will have to play other characters to unlock atlas first and build up currency, then comeback with this stupid build later.
Good luck.