Touch Spell Specialization( Complete Arcane, p. 83)
You deal extra damage with touch spells.
Weapon Focus (PH) (touch spell) , caster level 4th,
Damage-dealing spells that require a melee touch attack roll gain a +2 bonus on the damage they deal. This extra damage applies only to the fi rst successful attack of spells that allow multiple touch attacks (such as chill touch). Only spells that deal hit point damage can be affected by this feat.