The Mark of Detection grants abilities that enable its possessor to discern the presence of threats, from poisoned food to scrying eyes.
A saving throw against one of your dragonmark spell-like abilities has a DC of 10 + the level of the spell + your Cha modifier. Your new dragonmark spell-like ability has the same caster level as your existing dragonmark powers.
House: The half-elves of House Medani carry the Mark of Detection.
One of the youngest of the dragonmarked houses, House Medani organized into a mercantile house as a result of the War of the Mark that ended fifteen hundred years ago. Despite the fact that it has stood as an established mercantile house for fifteen centuries, some of the older houses still view House Medani as an upstart. Unconcerned with the opinions of its peers, House Medani controls the Warning Guild, which offers services related to personal protection.
House Medani originated in Breland and continues to concentrate its efforts in the central region of Khorvaire.
Unmarked members of House Medani sell their services as scouts, sentries, and similar occupations.
Marks: The aspects of the Mark of Detection grant the following benefits.
Least Mark of Detection: detect magic 2/day or detect poison 2/day; +2 bonus on Spot checks.
Lesser Mark of Detection: detect scrying 1/day or see invisibility 1/day.
Greater Mark of Detection: true seeing 1/day.
Siberys Mark of Detection: Moment of prescience 1/day
Advanced Dragonmark Feats
Dragonmark Prodigy: Your least dragonmark gives you access to a new spelllike ability.You gain a new least dragonmark spelllike ability. In addition, you can use one least mark spell-like ability that you already possess one additional time per day.
Detect dragonmark 1/day or ebon eyes 1/day
Dragonmark Adept: Your lesser dragonmark gives you access to a new spelllike ability. You gain a new lesser dragonmark spelllike ability. In addition, you can use one lesser mark spell-like ability that you already possess one additional time per day.
Discern shapechanger 2/day or know vulnerabilities 1/day
Dragonmark Visionary: Your Greater dragonmark gives you access to a new spelllike ability. You gain a new Greater dragonmark spelllike ability. In addition, you can use one greater mark spell-like ability that you already possess one additional time per day.
Dragonsight 1/day or zone of revelation 1/day
MARK OF TWELVE MOONS: Your dragonmark has mysterious ties to one of Eberron’s twelve moons; Lharvion.
Prerequisite: Any true lesser, greater, or Siberys dragonmark.
Benefit: You gain a +1 inherent bonus to either Intelligence or Charisma. In addition, if you are an afflicted lycanthrope, you gain a +10 bonus on Control Shape checks.
EYE OF MEDANI:The power of your dragonmark sharpens your senses.
Prerequisite: Any Mark of Detection.
Benefit: Once per day, you can reroll any one Spot check. The decision to reroll must be made before learning the outcome of the original roll, and you must accept the result of the second roll.
In addition, if you possess the lesser Mark of Detection, you reduce any miss chance you suffer against your foes by 20% (to a minimum of 0%). If you possess a greater Mark of Detection or a Siberys Mark of Detection, you instead reduce any miss chance you suffer against your foes by 50% (to a minimum of 0%).