Enchance

[Heretic]

How do I upgrade this weapon to like +1000 or atleast +200, +300? I am still a noob and I don't know much how Enhancement works.

[Chouhi Yokutoku]

http://onigiri.wikia.com/wiki/Weapon_Enhancement

[Firon]

Just want to point out the max lvl is 34 so by enhancing a lvl 30 you're sacrificing something like ~80 attack.

Smelting

Edit: Added link