So basically as topic title says I have two questions.

Is personal staff +7 and a mage stated for 100 int 255 mp rest hp any good for lightning mage? Will it stun a lot and what is the dmg comparison with respect to other staffs such as elsyium +7 or +8.

Also, was wondering how much mp really does help staff dmg. Like if I were to do the 100 int 255 mp rest hp build, or do a 160 int 230 mp or so build, would there be a SIGNIFICANT difference in dmg? How much would it be around like 50-100? All input is greatly appreciated.

Thanks