Best MD light for mage Luk

For matk under 900, which light element MD is the best?
1. Light, 12% to dark,int 12
2. Light , matk 7%, int 12
3. Light , 12% to dark , matk 7%
Which one?

Note,,
Now i have @50 light, 11% to dark,matk 7% +B .. I 'm planning to make new md since the layered magic system has higher atk.. But not sure what stat should i put in it..
Please help..

 

Ele , ele+12 , i12 should be better , but once you reached 1k matk , ele , ele+12 , m7% would be better.

 

Thank you sir.. So ele+12 is better than matk7%? I use it in mage luk.. So i think it will never reach 1k matk.. Cuz once i used md on boss battle, there were always somebody mad at me, though i often got atk rank and support,.