This is what we came up with for psychic powers...
Some general thoughts.  Magic is What You Are; Psychic Powers is What 
> You Can Do.  This may look like hair-splitting, but it represents a 
> fundamental difference.  When you break a Law with Magic, you're 
> changing what you are; but wizards kill people all the time with swords, 
> guns, cars, etc. and nothing happens to their basic nature.  (Hence why 
> Wardens used to be issued swords.)  Psychic powers are a tool; a very 
> potent and flexible tool, but still a tool. 
> 
> Psychics are Subtle.  Part of that is necessity, but part of it is how 
> those powers work. In the Subtle vs. Overt categories (see the section 
> on spellcasting on this) Psi always falls on the subtle side of the 
> fence.  Although psychics CAN kill with their powers, they prefer to use 
> those powers to help other people kill.  (When necssary...) 
> 
> Mechanic-wise, Psychic powers fall closest to Channeling; a focused 
> Evocation power.  Great with short-term effects within their field of 
> speciality.  Ritual casting I see as more of a plot-device, NPC thing. 
> (For a Ritual, each psychic can contribute 1 point to the ultimate 
> effect.  Just one.  It takes LOTS of psychics, working in concert, to 
> achieve the sort of thing that a Wizard can do just by taking a little 
> time and effort.) 
> 
> I also see psychic powers as always working as a form of contest.  What 
> do I mean?  Okay, when a Wizard uses power, he gathers it and releases 
> it towards a target or effect.  A Psychic extends their power to contact 
> their target.  So, a psychic, metaphysically, is poking their targets 
> with a pole.  A sentient target can conceivable grab the pole and shove 
> back, injuring the psychic (who has opened a direct link to their mind). 
> Whereas if Harry throws fire at you, you can block it, avoid it, or 
> shrug of the damage; but sending it back would mean instantly gathering 
> up all that power and chucking it back.  Even then, you'd still have to 
> target Harry with the effect. 
> 
> Psychic: Telepath (-2 Refresh)
  One stress point for using any effect, as per normal 
> Evocation/Channeling rules.  Requires Perception/LoS.  Most active 
> powers require Conviction vs. Discipline. 
Some sample 'rotes'
> 
> Mind-Reading:  Conviction vs. Discipline; takes shifts to gain 
> information (the more detailed, the more shifts required).  Can only 
> gain information specifically searched for (no freebies!)  Might gain 
> knowledge of target's Aspects.  If target wins the roll, inflicts 
> additional stress (one per shift) and ends all attempts that scene. 
> 
> Detect Lies:  Allows the psychic to use Conviction to sense Deceit and 
> other manipulation.  Passive, so no chance psychic can suffer damage; 
> but not infallible.  Useless against the Fae.  Only detects a lie that 
> speaker KNOWS is a lie. 
> 
> Sense Minds: Conviction vs Discipline.  Lets psychic know how many 
> people are present. 
> 
> Emotion Control:  Takes shifts to alter emotions; 1 per level.  (So, 
> inducing lust at a nightclub on an enthusiastic dancer?  One shift. 
> Bringing someone from a meditative calm to berserk fury? 3-4 shifts) 
> The emotion will only be momentary, but use of skills can extend the 
> effect. 
> 
> Mind Control:  Possible...but extremely difficult (Remember, this is an 
> Overt use of the power...)  It would take 4+ shifts to impose an Aspect 
> on someone...and it would only last a scene.  To permanently change or 
> impose an Aspect requires a Milestone, and the psychic must have access 
> to their target during that time.  It's much easier just to pay people 
> well and treat them nicely if you want their loyalty.  Sadly, the same 
> restriction applies to repairing damage done by other Mind Controllers. 
> It also means the telepath is risking Consequences (remember, the target 
> can damage the psychic...).  In game terms, it's safer just to kill 
> renfields rather than try to 'cure' them.  Even a healed target will 
> have the Aspect "Mentally Fragile" or something similar as an Extreme 
> Consequence afterwards.  It's easier to break people than fix them... 
> 
> Basically, if it's a passive, perceptual effect, the psychic is 
> reasonably safe.  Actively targeting people carries risks; permanent 
> changes aren't generally worth the effort. 
> 
> And since the telepath is opening a link to their mind, an unscrupulous 
> (but talented) Wizard could use mind magic to attack the telepath, even 
> if the Wizard wasn't the target.  Of course, that would automatically 
> give Lawbreaker to the Wizard, so only an evil sorcerer would do such a 
> thing...
