I think it is an option once you hit end game where you don't really want or need to do any farming. Have most characters and their weapons fully built with decent artifacts? Might as well turn your resin into weapon EXP.

I'm nowhere near that stage though.

You'll finish upgrading every weapon (even 3* ones) to max before you finish your characters, and artifact farming is forever grind.

Its a very inefficient thing to do unless one wants to max out a weapon fast instead of hunting down ore deposits.

That was my thought too, but it likely was a hold-over from when the lineup was a lot smaller, and one could have a fully built or close to roster.

Only instance I can see where it would be more efficient if you want to save those ores in order to make a new region's craftable weapons.

Extremely niche case, and I'm not trying to argue it is efficient for the average player.

Resin? Enchantement ore? Wut???

I have like 6000 enhancement crystals so no

I have 3000+ of the 3* enhancement crystals and never knew this.

I did it once when I was like ar 30 but never did it again. Also don't have the need to because I have 5k crystals.

I did it once because i need the ore, i later saw it cost resin as well as ore and never did it again

Nah

Resin is precious and I have so many enhancement ores and ores in general that I never need to do that

Nah I have way too many enhancement ores anyway and I need resin for farming artifacts