Enhancing Tempest Equips for ATK

Enhancements don't work like chaos scrolls; They only give specific preset stats on equips based on what slot they go into. You can only get weapon attack on gloves and weapons from enhancing, to my knowledge. Attack on gloves being extremely rare.

Apparently you can also get attack on shoes, but that's very rare. I've also seen a 32 attack mask that I didn't know existed, it's possible you have a very low chance of getting attack on any equip, it's just more common on glove and weapon.