I still sell every equipment cept +10 rings. Don't use any earrings

haven't upgraded any equipment until I see a gold mayu equp material whatever crap it's call

Iron does help but I don't know, too lazy and just wanna use good ones even it if wastes $

Personnaly, I just add the new materials to the previous methods, so I still use the gacha equip for upgrading and add them to the new materials.