Recently I've encountered a rather .... silly problem I have with my mage.
We play ghost cartels campaign and the enemies get stronger and stronger but my mage somehow lacks the firing power.
as info: I got 6 Essence, 6 Magic Points and 10 Drain
Now my problem is that everytime I cast I need to overcast to keep up with the bad guys. Most of the time I eat as much damage as the enemys because of drain but I'm fine with that. Now we adopted the (english rulebook) optional rule that manabolt gains additional drain with every nethit, this is a big hindrance for me. Now I've "reskilled" to lightning bolt, Fireball, Flamethrower and stuff like that but the drain is just silly on those things ..
I've calculated that if I cast Lightning bolt (F/2 +3) on Force 8 (4+3 = 7 Drain) it would cost just as much as casting levitate Force 12 (F/2 +1 = 7 Drain) and that I would do much more damage with the levitation spell than I ever could with a lower Lightning Bolt.
With a force 12 Levitation spell i can lift 2.5 tons of wheight. The speed is calculated with Force x Nethits meters per turn
Force 12 with 12 hits would be 144m/3s or 48m/s. This would be 172 km/h. Since the speed is high enough to be similar to a traffic accident you could use the rules for running someone over with a car. Since the Speed is between 61-200 meters per turn the "victim" would suffer the cars body x2 in damage. Typical cars have a body of 8 or 10 that would mean 16P or 20P damage that most likely can't be evaded and every combat phase after the first you just can smack him again since you can hold on to the Force 12 levitation spell with only a -2 modifier.
Is there something wrong with my thinking or are elemental spells inferior to levitation as a combat spell

Edit: Just that you know my mage needs to keep up with a sniper maniac that uses the biggest sniper rifle with apds shells. most of the time he does 18P damage with -8 armor ... that's why the enemies use a lot of edge and my mage is in this unfortunate situation