As my previous post highlights, I've had Burning Wheel and Eberron on my mind.
Another key element of Eberron are Dragonmarks. Both the houses as well as the various powers of the mark. I think the easiest approach is to treat a dragonmark much like the Faith emotional attribute, but with a limited scope.
The character gains the "Dragonmarked" emotional attribute. The character's body manifests a visible mark, much like a tattoo, that grows in size relative to their Dragonmarked score.
Pick the idiom for your mark from the following list: Detection, Finding, Handling, Healing, Hospitality, Making, Passage, Scribing, Sentinel, Shadow, Storm, and Warding.
Starts at rank 3.
|Draw Upon||2||Make one idiom related ability or skill open-ended until the end of scene.|
|Aid||4||+1D to any idiom related ability or skill test. Each success increases the aid by +1D, up to a maximum of +3D.|
|Manifestation||5||Analogue to Minor Miracle.|
|Obviously not enough entries, but this is what I have.|
A Dragonmarked character may always FoRK their Dragonmark emotional attribute into skill checks that align with their Dragonmark's idiom.
Consequences of Failure
Tax, as per Sorcery tax.