An Example of Diablerie

Vampire - The Requiem
Vanian the Gangrel is supposed to deliver a message to his sire’s Mekhet confidant. When he arrives at the meeting place, he finds nothing but a trail of blood and a torpid Nosferatu in bad shape. Vanian figures that he has a golden opportunity before him — he’ll diablerize the Nosferatu and if anyone raises a fuss, he can implicate the missing Mekhet.
The torpid Nosferatu has only one Vitae remaining, which Vanian quickly devours. Thereafter, the process of Diablerie begins, and Vanian has seven turns in which to succeed, as his Willpower is 7. The Storyteller rolls six dice (for Vanian’s Resolve + Stamina), gaining two successes. The Nosferatu also has a Willpower of 7, so Vanian needs five more successes to complete the deed, but he doesn’t know this. Vanian chooses to continue, so the Storyteller rolls again, this time acquiring three more successes. Vanian presses on, determined to complete the deed in spite of this tough old Haunt’s tenacity. The Storyteller yields two more successes in the third turn, signifying that the Diablerie is complete.
Vanian’s Humanity automatically drops from 5 to 4 to pay for his base treachery, so his player rolls four dice to determine whether or not Vanian gains a derangement. Sure enough, he fails, and the Storyteller decides that Vanian acquires the derangement of Sanguinary Animism. That Nosferatu’s voice shrieks acrimony inside his head every now and again. On the other hand, the Gangrel feels a rush of power. The Nosferatu had a Blood Potency of 4 and Vanian’s was only 2, so it now rises to 3. In addition, he chooses to acquire a dot of Obfuscate, which he didn’t know at all before.
Now all Vanian has to do is hope that no one studies his aura for the next four years, as the black veins therein will remain for that long. With any luck and his new knowledge of Obfuscate, he’ll be able to lay low long enough to allay any undue attention. Helping him in that aim will be Kindred suspicion of the Mekhet contact, who has fled the domain for some reason.