Alaznist's Jinx

Evocation [curse]
Level: Antipaladin* 4, Bard * 4, Cleric */Oracle * 6, Inquisitor * 5, Shaman * 5, Sorcerer */Wizard * 6, Warlock * 5
Components: V, S
Casting Time: 1 Standard Action
Range: touch
Target: creature touched
Duration: permanent
Saving Throw: Will negates
Spell Resistance: yes
  You inflict a curse similar to the spell burn spellblight (Pathfinder RPG Ultimate Magic 97) on a creature. Each time a spellcaster who is afflicted with this curse casts a spell or uses a spell-like ability, her skin seems to burn as though she were on fire. With a successful concentration check (DC = 15 + double the spell level of the spell cast or spell-like ability used), the spellcaster can ignore the pain of the effect, but if she fails, she loses the spell or spell slot and is Staggered for a round. Unlike with the spell burn spellblight, the burning sensation is a tangible effect, visible during the act of spellcasting as an Incorporeal, violet flame surrounding the caster.