Klaus said:
You're right, you need a 3rd-level spell. Still, the ability to deal 3d6 damage along a 20´ line at will is nothing to sneeze at. And this is only Storm Bolt. Dimensional Jump allows for (at minimum) 20'-range teleportation at will, which is a great utility feature to use throughout the day. There are other very nice feats in there too.
??? My reading is that being able to cast 3rd level spells is a prerq for the feat, but its effects aren't based off of 3rd level spells only. So if I still have Shocking Hands memorized as my only Electrical spell, I can still use the Storm Bolt feat ability for 1d6 damage.
On another point: From a summary on the WotC boards, it looks like the effects of the resever feats allow saves in some cases. So that takes the power down another notch.
Also, reserve feats allow a sorcerer to be even more flexible - if a wizard casts the lightning bolt spell he has memorized, and has no other "electricty" spells uncast, he loses the primary benefit of the feat.
If a sorcerer simply
knows lightning bolt, he can use the 20' electrical line as long as he has
any 3rd level slots left. And he could use all those slots to cast
Summon Monster 3 if he wanted, not lighting bolt.
If a sorcerer knows an Electricy spell for each of his slot levels, he can use the "at will" ability as long as he has even one unspent spell slot left. The wizard might loose the benefit after casting just one or two spells, even if he's 20th level (of course, the wizard would probably have more than one spell of the proper descriptor memorized, but you get the point.)
For those complaining this book doesn't give the sorcerer enough love, I don't think you're looking hard enough...