Cursed Dragonmark

(Dragonmarked, page 149, DnD 3.5)

Necromancy

Level: ; Cleric 3; Sorcerer/Wizard 4
Components: V, S,
Casting Time: 1 Standard Action
Range: Close (25ft. + 5ft./2 levels)
Target: One dragonmarked creature
Duration: Permanent
Saving Throw: Will Negates
Spell Resistance: Yes

Every time the target creature attempts to use or expend one of its dragonmark powers, there is a 50% chance that the attempt fails, wasting that use of the mark. A cursed dragonmark can be restored to normal with a break enchantment , limited wish, miracle, remove curse, or wish spell.

Dragonmark. Any true or aberrant dragonmark.