Invisible Weapon
This power can be a potent tool for an assassin or thief. Invisible Weapon cloaks a weapon with Obfuscate, allowing the wielder to walk around with it drawn without attracting attention, and also to strike at a target with the advantage of total surprise. The infamous Nosferatu assassin Vyacheslav of Bulgaria, who is fast becoming a well-used tool in vampiric conflicts int he Byzantine successor states, is known to wield this power.
System: The character chooses his weapon. The player spends a blood point and rolls Manipulation + Melee (difficulty 7), with the power lasting one hour per success. The weapon is cloaked by Obfuscate and is invisible to anyone who does not have sufficient Auspex to see through the Obfuscate. The vampire can walk through a crowded bazaar with a drawn sword and no one will notice. If the character decides to attack someone, the victim cannot see the attack coming. If any person has reason to suspect an attack (such as seeing the user approach and swing at her), she may attempt a defensive action, such as a dodge or parry, at +3 difficulty. Any attack breaks the invisibility of the weapon, but only with regard to the person attacked. Others still see the wielder as empty-handed. After attacking, the wielder can choose to maintain the weapon's complete invisibility at the cost of one Willpower each round. A defensive action against a still-cloaked weapon is at +2 difficulty, as the target knows that a weapon is employed, but cannot see it. This power also works on bows and crossbows, cloaking the missiles fired, as well as on thrown weapons.
Despite the name, this power can actually be used on anything the vampire holds in her hands. This makes it quite an efficient tool for a thief. When not being used to conceal a weapon, the activation roll is Manipulation + Larceny (or Manipulation + Streetwise in the modern era).
