Sibyl's Tongue
Elder Malkavians have a well-deserved reputation as seers and prophets. The power of Sibyl's Tongue takes this predilection one step further: The Malkavian so blessed can call on her advanced Auspex to go deliberately questing into the Legion-mind for the answer to a particular question. If some Malkavian somewhere knows the answer, then the sibyl has a chance of making the connection to that Malkavian's memories and drawing forth the information.
Failure carries a penalty, though. To open oneself to the Legion-mind and deliberately tread naked into its waters - that's dangerous stuff. Whenever a Malkavian uses this talent, she runs the risk of having the clan's collective mad thoughts invade her head in a rush. The process is... highly unpleasant.
System: The Malkavian must focus for a turn to attune herself to the Network. The player then rolls Wits + Investigation, difficulty 8. If the roll is successful, the Malkavian gets the answer of her choice; the more successes, the less cryptic the reply. However, the answer must be something that some Malkavian somewhere knows (excluding Malkav himself, of course).
If this roll is failed, then the Malkavian is in trouble. The stew of psychoses that makes up the Network invade her personal headspace, to such a speed that it's impossible to filter out what she wants. She immediately gains two additional derangements for the duration of the scene. If the roll is botched, then the effects are even worse - one of these additional derangements settles into her mind permanently.
At the Storyteller's option, particularly dangerous questions might inflict an extra derangement even if the rill is successful, and have even more sever penalties for failure. This is especially true of questions that require tapping the mind of a Methuselah - a place nobody, no matter how well-prepared, wants to go.