Allow multiple "cone" spells to be cast at once?

[Zeofar]

I'm not so sure about that.. A cone a paralasis with a Thunderstorm/Dragonbreath? Although it may be a bit balanced game wise, you have to consider the RP ramifacations of the level of concentration it would require. Perhaps a prerequisite in Meditation or Archmage status in the mages Guild? Both? You would have to be a strong spellcaster to do this. Also, the reason why you can cast Fireball and blizard at the same time, is becuase you are not putting that much energy in creating a constant stream of it, and also they are not determinable when or what they might hit, its easier to just sidestep it and never see it again than a cone.