KetseukiKyoen

An extremely unique Kekkei Genkai in which the user functions as a sort of vampire, allowing them to ingest the blood and chakra of other shinobi. The transformation begin's with the user forcing chakra into their teeth, specifically the canines, forcing them to grown in length, in what has been described as a "rather painful" process. After the completion of growing fangs, the user is able to pierce the vein's as well as the keirakukei of whomever they should set there wrath upon. Aside from being able to drink the blood of a victim due to the user also piercing the keirakukei they are also able to "drink" their chakra. Due to the user ingesting the blood of a victim it may also be possible to for the user to absorbed a kekkei genkai if enough blood is ingested.

Weaknesses
The first glaring weakness of the KetsuekiKyoen, is that the user literally has to be within biting distance of an adversary for them to be able to use it's effects, leaving them open to attacks in the process.

The second and perhaps more profound weakness being that if a user suddenly stop's feasting on shinobi they will go through what could best be described as withdrawal, as they will begin to experience maddening urges to feed. It should be noted that no amount of feeding will ever completely halt the urges, only briefly sate them.