PoE builds similar to PoE 3.15 - Occultist - Caustic Arrow / Toxic Rain Ballista - no gears - Super Budget

As I noticed many people complained about the current state of TR/CA pathfinder, I decided to share my personal experience with the build. Disclaimer: I am a bad player so feel free to correct me I knew I couldn't play a lot during the first week, so my focus was farming currency during the first weekend and investing in items that will eventually appreciate. Therefore, the investments I have made in my build are minimal. Key steps: I leveled as PC until about T8 maps after which I swapped to a 5 link +2 gems bow (<5c). You need vaal CA for single target combined with withering s

Notes: A build that has great defence and movespeed, great clearspeed at a relatively low investment. With investment it can do all game content except from the hardest Uber bosses. You will be vulnerable to physical hits, so your manual dodge skills have to be excellent, but since you are doing damage over time it will be much easier to not get hit. Playstyle: Uses both Caustic Arrow and Toxic Rain against hard monsters - place the totems, cover area in caustic ground, then spam toxic rain as long as you can before taking damage or get some other reason to change cha

I have wanted to play caustic arrow for a while now but it doesn't seem to do enough damage. I threw together this POB and it doesn't look promising: There's little gear, but even with expensive stuff I don't see it doing more than maybe 3 million DPS, and since its tankiness and speed isn't great, it doesn't seem worthwhile to play. Has anyone found success with Caustic Arrow?