Diablo IV, Diablo 2 and Diablo 3 Forums - Diabloii.Net

CB or Nova as synergi?

Hi, I'm currently leveling up CL/FO sorc, and I've maxed LM, CL and Lightning now, and wondering which skill is more useful to put my last 19 points into, CB or Nova?

I already have 1 point in CB (prereq.), none in Nova, and if my calculations are correct, I got 19 points left to play with (currently lvl 82, so 17 points from 83-99, plus 2 from Izual quest in Hell.)

Mainly I'll of course be boosting whichever skill I choose for the purpose of synergising CL/Lightning, but of course it would be smartest to boost a skill that might just be useful on its own as well.. So, any good advice on which skill is better? Personally I'm thinking Nova, but before I start sinking points into it, I'd like to know if there's a reason why CB might be better?

Edit: Current skill distribution:

1 Charged Bolt
20 Lightning
20 Chain Lightning
20 Lightning Mastery
1 Telekinesis
1 Teleport
1 Static Field
1 Warmth
1 Ice Bolt
1 Ice Blast
1 Frost Nova
1 Blizzard
1 Glacial Spike
20 Frozen Orb
1 Cold Mastery