I am a battle mage with lvl 75 destruction and i have invested in alot of magicka points and a bit of health. I have downloaded the Midas Magic Mod too, so which are the best spells to use at my lvl including the mod as well as normal game?

bump

Spamming fire balls is my main way of dealing with problems.

Provided you have your casting costs dropped to 0%, use whatever's the most fun. I prefer Thunderbolt myself.

The Adept spells are good for any level. You don't really have to aim. just point in the general direction and fire.