Eldritch Dragonbane
(Dragonmarked, page 139, DnD 3.5)
[General]
Your eldritch blasts deal more damage to dragons and their ilk.
Prerequisite
Ability to invoke an eldritch blast, any true or aberrant dragonmark.
Benefit
Your "eldritch blast":/classes/warlock/ (Complete Arcane 7) deals an extra 2d6 points of damage to dragons, and an extra 1d6 points of damage to creatures with the dragonblood subtype (see page 140).