Kiss of the Moon
The effects of this ability are not as dramatic as Howling Lunacy, but unlike that power, Kiss of the Moon is permanent. The vampire chooses a pair of related disorders and, after a few moments' conversation with the target, she passes them on to that poor soul. These afflictions haunt the victim for the rest of his existence. Rumors persist that the user of this power can withdraw the insanity it brings at will, but few Malkavians are willing to stop the flow of enlightenment that such madness brings, and almost no Cainites outside of Malkav's get are talented enough with Dementation to attempt such a thing.
System: Make a resisted roll with your character's Manipulation + Empathy (difficulty 6); the target resists with her current Willpower (difficulty 6). If you achieve at least two net successes, you may select two derangements (or describe two, if you have particular ideas that the Storyteller approves) and apply them to the target. The target cannot eliminate these derangements, but he may fight them as he would any other derangement (see p. 261). The Storyteller may allow you to withdraw derangements that you create with Kiss of the Moon, but he will undoubtedly require an excellent reason for doing so. Even then, the Curse of Malkav may be irreversible. Note that derangements created with Kiss of the Moon do suffice to allow the target to learn Dementation.