The Ghastlibanez

the Ghastlibanez would be rather than to inflict fear, to inflict pressure on people. The person affected would have the slimmest power to resist this ability as the effect would be "like an unscratched itch" mentally. Whether or not this being uses it for good or evil, it has the free will to do so depending on the person. For example, if the creature favors the person, it could use its powers to pressure the person into working him/herself into a good scenario.
"Living rent-free in your head, mor