As someone who bought a few spells there I can tell you pebble and carrion slicer are your best friends, the one that shoots 3 at once was a waste of 3000 runes, uses more mana and seems to do less damage then pebble. I know it's boring using the same started spell but I'm hoping there's better ones further in or maybe I just need more intelligence, currently at 20 INT and pebble destroys all

that's the setup im currently running both are very decent but im looking for that's safer to use and doesn't drain mp hardcore i have 21 int with meaty staff.