Dragonmark heirs have the ability to improve the dragonmarks they have manifested, as well as to develop additional abilities related to their dragonmarks.
Weapon and Armor Proficiency: Dragonmark heirs gain no proficiency with any weapons, armor, or shields.
Lesser Dragonmark: A dragonmark heir manifests the lesser dragonmark of her house. She receives the Lesser Dragonmark feat as a bonus feat without having to meet the skill rank prerequisite.
House Status: A dragonmark heir uses her level in this class as a bonus on all Charisma-related checks when dealing with members of her own house.
Additional Action Points: At 2nd level and beyond, a dragonmark heir's maximum action points per level is increased by 2.
Improved Least Dragonmark: Beginning at 2nd level, a dragonmark heir gains improved mastery of her least dragonmark. She can select a second spell-like ability associated with the least dragonmark for her house, or she can use the least dragonmark spell-like ability she already possesses one additional time per day.
Improved Lesser Dragonmark: Starting at 3rd level, a dragonmark heir gains improved mastery of her lesser dragonmark. She can select a second spell-like ability associated with the lesser dragonmark for her house, or she can use the lesser dragonmark spell-like ability she already possesses one additional time per day.
Greater Dragonmark: At 4th level, a dragonmark heir manifests the greater dragonmark of her house. She receives the Greater Dragonmark feat as a bonus feat without having to meet the skill rank prerequisite.
Improved Greater Dragonmark: At 5th level, a dragonmark heir gains improved mastery of her greater dragonmark. She can use the greater dragonmark spell-like ability she already possesses one additional time per day.