changed Mana Focus and Fireball to interact in a different way.

Mana Focus is now Raging Flames and interacts with Fireball only, Lightning Bolt has been buffed to 18-22 damage to make up for the removal of mana focus.

Raging Flames is now a temporary enchant that lasts 5 to 10 seconds (based on SP), has no cast time, no reagent and mana cost, but a vigor cost of 30.

While raging flames is active, fireballs do up to 5 extra damage, cost up to 4 mana less and can be cast every second instead of every 2 seconds.

All in all that means:

Fireballs deal 5 damage per second (as before), lightning bolts deal 10 damage per second (buffed). Fireballs cast during raging flames deal 15 damage per second (new).

I'd need quite a bit of help testing if this works. Again, I tried my best to make sure everything should work, but without testing environment... same story I know, sorry. A quick feedback if this produces any errors would be greatly appreciated. Thanks! :)