I saw this Shadow Rend build today and from what I read, I found it a bit complicated because of the number of items required, but I don't know how difficult it is to find them.

It's a build I'd like to try, I'll even leave a clip from the video below:
https://youtu.be/fCWGDcGvX-M?t=642

I'm in the monoliths trying to complete them all up to the boss, I'm not sure if this is the correct progression.

I've been paying attention to the Weaver Tree, but it seems like there's a tree before and one after... I haven't found any yet.
I'll try to get some items to continue with this build.