The Reserve feats aren't there to beat equal-CR monsters. That's not something you should be able to do all day without cost. They're fine for plinking away at equal-CR monsters while you are on the run, but really they're so you can avoid wasting spell-slots when fighting mooks. Reserve feats
are less useful vs. boss monsters -- but that's fine. So is Cleave.
Also, nearly every class needs a competent build to be competent.
I could make a Fighter who sucks from level 1 on up, and a Sorcerer who would be a nightmare to play. The only class that'd be hard to really nerf would be the Druid, because Wild Shape doesn't depend on any particular ability scores or feats to work reasonably well.
In this specific case,
color spray is
better than it usually would be for a Sorcerer or Wizard, since this dude isn't as squishy. The normal 1st level Sorcerer or Wizard is very unhappy if some of the goblins resist -- this dude is happy he's cut down his immediate number of foes, and lays some smack down on the ones who remain.
- - -
I was looking at higher level spells. There's one 7th level spell that has all 4 major energy types (fire, cold, electricity and acid; it's in Dragon Magic; there's presumably something similar in Spell Compendium).
Glorious Master of the Elements is the name, and it is a flexible 7th level attack spell, but more importantly it can power all four energy attack Reserve feats.
For his last 10 levels, let's see. At 11th level he gains a 2nd, 3rd and 4th level spell...
Level 2 spell: Glitterdust or See Invisibility or Wraithstrike (Spell Compendium) or Mirror Image
Level 3 spell: Suggestion or Heroism or Fireball
Level 4 spell: Polymorph
12th level -- Minor Shapeshift (reserve); (spell swap? don't need
alter self as much)
Level 6 spell: Greater Heroism, Greater Dispel Magic or Mass Suggestion (
none of which benefit his reserve feats)
13th level...
Level 4 spell: Dimension Door
Level 5 spell: Wall of Force or Lord of the Sky (Dragon Magic) or Undying Vigor of the Dragonlords (Dragon Magic)
14th level: (spell swap? Don't need
firestride exhalation any more.)
Level 7 spell: Glorious Master of the Elements (Dragon Magic)
15th level: Two Reserve feats which we don't have yet: Invisible Needle, Storm Bolt, Winter's Blast, Acid Splatter, Force Blade, or Touch of Healing.
Level 5 spell: Baleful Polymorph
Level 6 spell: One of the above spells, or Disintegrate
16th level: (swap Baleful Polymorph?)
Level 8 spell: Polymorph Any Object
17th level:
Level 7 spell: Limited Wish or Plane Shift, depends on the campaign.
18th level: (open feat; swap spell?)
Level 9 spell: Gate or Shapechange, depends on the campaign.
19th level:
Level 8 spell: Mind Blank or Prismatic Wall, depends on the campaign.
20th level: (open Reserve feat; swap spell?)
Level 9 spell: Wish, Gate or Shapechange
Hope this is helpful, -- N