Item build help / challenge

Hi.

I’m really bad with builds. My brain isn’t wired like the majority of builders. I enjoy playing your builds, which is why I’m here. However, I deleted loads of SC characters and gear, keeping only my level 100 characters with zero deaths (so I have 2 level 100s and am levelling two more).

I love the new bonging churchbells o’loot feature on v2.0. I heard them peel and found this:

And, despite owning GD since early access and having thousands of hours in… I’ve never levelled an elementalist.

Is this double-rare halberd worth me building around, and does anyone have any advice?

TIA

CBRG