Couldn't find anything remotely centered on Dragonmarks, just scattered quotes here and there.
Most quotes dealt with Blade of the Orien, using it for Teleport-Pouncer builds, Nosomatic Chirurgeon to get a Warlock into PrC that have "cast spells of X level" as a prerequisite, or Mark of the Dauntless(immune to daze) for Celerity-abuse.
I read Dragonmarked a few days ago and a few things caught my eye:
Nosomatic Chirurgeon does give Adept Spellcasting(for Eberron Adepts this even includes 1 domain), if you don't have any spellcasting. While not great, it might be a decent way to get divine spellcasting for PrC-Prerequisites. Better than a Cleric-dip? No way, but it avoids multiclass penalties(some DM still enforce this crappy rule) and comes with a slightly different spell list.
House Lyrandars PrC looked average, but I like the spell it's based on(gust of wind) and there are far worse Fighter-PrC out there. Ways to power it up to the max?
Unbound Scroll PrC: Loses 1 casterlevel, but the capstone looks like it might make up for the loss(basically: burn one use of your Dragonmark SLA, to use a scroll without expending it. Up to 6th level with Greater Dragonmark, even the crappy cantrip-SLA of a least mark can be traded for any 2nd level Spell you happen to have on a scroll).
Metamagic Scroll caught my eye, how would it interact with Echoing Spell?
Especially if the scroll was higher casterlevel(say a Magic Missile at CL 9) and used with the capstone ability(to avoid losing the scroll), I figured it would return 1 hour later at CL-4(twice, since CL-8 would still be enough to cast Magic Missile at CL 1).
While not great, the Vadalis Beastmaster could make for a decent mounted combatant that also gets Polymorph & some Summoning(Nature's Ally I-IV +template: magebred).
The Breath of Siberys Feat makes the already good PrC a bit better, with the right setup(Dragonborn, Dragonfire Adept, or Half Dragon).
Would a temporary Breath Weapon from Totemist or Dragon Wildshape qualify for the feat?
Some of the other feats struck me as decent, especially with expending a use of greater dragonmark to buff your whole party(including your summons, if you're going Druid or Malconvoker).
Am I wrong?
+1 inherent bonus to an attribute(choice out of 2 for each true dragonmark) worth a feat? I don't think so, but than again I almost always have to few feats
Marked Homunculus(1st level Wizard/Sorcerer Spell, or Artificer Infusion): Seen it used with a questionable Vestige in a Nanobot-build.
Wouldn't it make a nice addition to Hordeficers or summoning focused casters even without the ability to spam it?
Worth to take the lesser/greater Mark of Making to get to the better Homunculi?
Looks like, there isn't even enough useful stuff to make a Handbook out of it. Does anybody know of anything potentially good, that I didn't mention?