The_Warlock
Explorer
As everyone has said, take the player aside, point out the racial HD mistake, and have him remake the character with the appropriate hit dice and feats.
He should still be quite capable for his level.
I have to say I found many of the Complete Warrior feats a little on the over the top side, but sunder (and its baseline feat tree) in and of itself is not imbalanced.
And my answer to when he gets his feats and hit dice back after going up a few levels:
Displaced, Incorporeal, Undead, spell-focus enchantment, sorcerers under the command of a mid flayer lich.
He should still be quite capable for his level.
I have to say I found many of the Complete Warrior feats a little on the over the top side, but sunder (and its baseline feat tree) in and of itself is not imbalanced.
And my answer to when he gets his feats and hit dice back after going up a few levels:
Displaced, Incorporeal, Undead, spell-focus enchantment, sorcerers under the command of a mid flayer lich.