Madness Manipulation

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Summary
Madness Manipulation is the ability to affect the sanity of other beings, usually in a manner that causes them to become insane. While often associated with Mind Manipulation, the methods used to achieve this effect tend to vary from character to character, with a number of these means overlapping with other, separate abilities instead.

Types
1: Psychology: ''Users of this type are able to drive others insane through purely psychological means, relying on their own verbal and charismatic abilities to push their victims over the edge. While rarely applicable in a combat setting, characters who are exceptionally skilled in this area are able to use their words to effectively stop confrontations before they begin.''
 * Examples:
 * Limitations: Characters experienced in dealing with mind-games and trickery can most likely avoid falling victim to this type. Those who specialize in doing this may also be capable of dealing with it themselves, due to their own experience in such.

2: Biology: ''Certain characters can alter one's sanity through the use of biological methods, many of which involve tampering with specific parts of the brain. Chemical means (such as drugs, poisons, and toxins) also fall under this category.''
 * Examples:
 * Limitations: Sufficient Resistance to Biological Manipulation can render this approach useless. Characters with robotic, elemental or Non-Corporeal forms are naturally immune to this due to lacking conventional biology.

3: Mind Manipulation: Users of this type rely upon directly interacting with the minds of their victims, utilizing various forms of mental attacks to drive them insane.
 * Examples:
 * Limitations: Sufficient Resistance to Mind Manipulation renders this approach useless, as does anything else that would interfere with the user's ability to affect the victim's mind.

4: Cognition: ''Those who possess this type drive others insane as a side-effect of the nature of their being, with the very act of looking at or attempting to perceive them being enough to send victims into a state of madness or terror. More extreme forms are capable of outright killing those who suffer from their effects.''
 * Examples:
 * Limitations: Those who are capable of perceiving, understanding and/or experiencing that which is naturally extreme or incomprehensible should be able to ignore this. Likewise, unless there is evidence to suggest differently, beings whose physical forms are similarly complex or extreme in nature are likely to be unaffected by exposure to such a being.