Black Karma Curse

Enchantment (Compulsion) [Mind-
Level: Cleric 2, sorcerer/wizard 2
Components: V, S
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One creature
Duration: Instantaneous
Saving Throw: Will negates
Spell Resistance: Yes
With a word and a gesture, you compel the
bewildered creature to attack itself.
If the target creature’s saving throw
fails, it immediately takes damage
as if it had hit itself with its currently
wielded weapon (or natural weapon). If
the creature has more than one eligible
attack form, it uses the one that deals
the most damage.