Attune

Enchantment 
This limiting enchantment, a derivative of Bane, makes a magic item work better against a specific target. It works on any Resisted spell, providing a penalty to the target’s resistance roll. If enchanted into a magic item before the spell to be affected, the cost to enchant the affected spell is halved. 
The enchanter must possess something connected to the target. The accuracy of the symbolic representation determines the penalty to the resistance roll. 
In every case but the last, the representation must be incorporated into the magic item, though it need not remain intact (e.g., a videotape may be crushed to powder). If the target is present, presumably he has either been misled as to the purpose of the enchantment, or has agreed to it for more complex reasons (for instance, he’s worried he might run amok in the future). 
The downside of this enchantment is that, when the item is used against other targets, they get a +5 to their resistance roll. An Attune Enchantment cannot be removed from an item unless the enchantment or enchantments it controls are removed first.

Energy Cost to Cast: 100. 
Prerequisite: Bane.