It is one thing to master your own flesh and shape your form, but it’s something else to force your will upon another, demanding that his or her physical form take the shape you command. Certain exceptional elder Gangrel have mastered this ability, and can use his or her blood to overcome another individual’s native command of shapeshifting. For this power to function, some portion of the Gangrel’s blood must have been ingested by or otherwise be in contact with the target’s flesh or worn clothing, whether unwillingly or willingly.

System: The Gangrel must first place her blood on the target. If the target has successfully attacked the Gangrel with natural weapons, or with a short weapon like a knife, it fulfills this requirement. Otherwise, the Gangrel must smear at least one blood point worth of her vitae on the target by making a successful attack or by making a small blood mark on an unsuspecting target. This may be done in advance, but the blood must still be wet (within a few minutes), and the subject must be in line of sight in order for this power to be viable. Thereafter, the Gangrel activates this power by spending an additional blood point and making a Perception + Survival roll (difficulty 7). Two successes are required to force the target out of his shape-shifted form and into her native (original) shape.

While this power is active, the individual cannot assume any other form. This power persists for a full scene, or until the target removes the Gangrel’s vitae from his body (or clothing), whichever is sooner. The process of cleansing oneself of the Gangrel’s blood takes at least one full turn of action. If the target has actually consumed the Gangrel’s blood, then she cannot remove the blood so easily.

Use of this power will persist for the full scene, and Shape Mastery may be attempted again thereafter (this power does not consume the blood with its use), so long as the Gangrel still has line of sight. If the target chooses to resume his adapted form after this power ends, she must reactivate that power, incurring any associated costs, and performing any appropriate rolls.

This power is effective on the shapeshifted forms of Obtenebration, Protean, Serpentis, Thaumaturgy, and Vicissitude at levels equal to or lower than the vampire’s Protean. Further, it also confounds the native shapechanging abilities of other supernatural creatures, such as Lupines and Fae.