Dragon Ward

(Eyes of the Lich Queen, page 11, DnD 3.5)

[General]

Your dragonmark gives you protection against dragons and their kin.

Prerequisite

Aberrant Dragonmark (or), Least Dragonmark, special ability granted by the Altar of the Dragon’s Eye

Benefit

As a swift action, you can sacrifice a daily use of the spell-like ability granted by your least dragonmark or aberrant dragonmark to gain a +4 bonus to Armor Class against dragons, and a +4 bonus on Reflex saves against the attacks, spells, and special abilities of dragons. This bonus lasts for a number of rounds equal to one-half your character level.