MET LARP SRD

From Vulcan’s mirror that showed the past, present, and future, to the phrase “mirror, mirror on the wall,” mirrors have played an important role in many facets of the occult world. While the Tremere developed Countermagic to nullify magical effects, other thaumaturgists have devised a more insidious countermeasure. By ingesting the two components of a mirror — silver and glass — you may temporarily take on the properties of a mirror, reflecting unwanted magical influence back upon its wielder.

You must melt down and ingest a small amount of mirror that contains either a back or front layering of silver. Consuming the mixture of molten glass and silver causes 1 point of unsoakable aggravated damage.  For the remainder of the evening you may attempt to achieve an exceptional success whenever you are targeted by a blood magic ritual. This is an exception to the rule stating that you may only score an exceptional success if you are the attacker in a challenge. You must meet all of the other qualifications to achieve the exceptional success, according to the rules for exceptional successes.

If you achieve an exceptional success, you may choose to not only be unaffected by the ritual, but to also redirect the effects of the ritual back on to the original caster. To do so you must expend your simple action and make a contested Thaumaturgy roll against the character who originally targeted you. If you succeed, your opponent suffers the normal result of the power as if you were the originator. You may not apply the focus effect of the power, nor any bonuses from an exceptional success. 

Reverse Protocol can only be used on blood magic rituals that use an opposed challenge to deliver their effect; it will not reflect powers that augment brawl or melee attacks such as Shaft of Belated Quiescence or Bastone Diabolico. Once you have successfully reflected a ritual back onto its caster the effects of this ritual end.