When enchanted, the P. Atk. of A-Grade weapons such as sword/one-handed, blunt weapon/one-handed, dagger and spear etc. will increase by 4. The P. Atk. of sword/two-handed, blunt weapon/two-handed, dualsword, and fist-fighting weapon/two-handed will increase by 5. The P. Atk. of bow weapons will increase by 8. The M. Atk. of all weapons will increase by 3. From +4, P. Atk. and M. Atk. bonus will double for all weapon types. It can be safely enchanted up to +3.