Campbell
Relaxed Intensity
One of the big objections to At Will attack spells that keeps coming up is the idea that it's unbalanced because unlike archers spell casters never run out of ammo for their ranged attacks. Now, my experiences might be unusual, but throughout 12 years of playing various editions of the game I've never seen a PC run out of ammo. In most games I've played ammo is so cheap that players load up with so much of the stuff its damn near impossible to run out. In the last 3e game I played in it wasn't unusual for the archer in the group to head out on the adventure with somewhere near 200 arrows.