As a safe standard action, target gets -2 to either: AC, ability checks, attacks, saves, or skills for 8 rounds. Will DC 17 reduces to 1 round; mind-affecting Target is also affected by your jinx.
CL +1 for darkness, light, shadow spells.
Other wandering spirits are also available.
As a safe standard action, curse a creature within 30ft. Will DC 15 negates It gets –1 to attacks, saves, initiative. Also, beneficial variable effects always result in the minimum possible amount for the effect. Jinx one target at a time.
As a safe standard action,
divide 1d6 between undead and living.
1d6+6 positive energy, 30ft radius
Will DC 15 halves.