If you wish, you may use the following homebrew subclasses and racial feats from the book Exploring Eberron by Keith Baker:

Key:

• EE: Exploring Eberron
• CoE: Chronicles of Eberron

Subclasses

• Artificer: Forge Adept (EE)
• Artificer: Maverick (EE)
• Bard: College of the Dirge Singer (EE)
• Bard: College of the Fury (CoE)
• Cleric: Aspiration Domain (CoE)
• Cleric: Mind Domain (EE)
• Druid: Circle of the Forged (EE)
• Monk: Way of the Living Weapon (EE)
• Paladin: Oath of Veneration (CoE)
• Rogue: Dark Petitioner (CoE)

Feats

• Aereni Halflife (req. Elf) (EE)
• Envoy Specialist (req. Warforged) (EE)
• Focused Personas (req. Changeling) (EE)