Fuuin Jutsu: Ninjoukan (Sealing Technique: Empathic Connection)
Ninjutsu (Sealing; Requires Ninjutsu 12 ranks) [Kinjutsu of All Ninja Villages]
Rank: 5 (B-Class);
Range: 10 feet;
Target: Two willing creatures;
Duration: Permanent;
Saving Throws: None;
Chakra Resistance: Yes;
Chakra Cost: 16.
This technique bonds two targets together using seals and was previously used on Genin teams to force teamwork, before being banned after the Second Great War due to the number of suicides encountered after their "bonding" partner died. To properly execute this technique, the two targets to be bonded together (one of which may be the user) will need to scribe a seal on each other using the "partner's" blood. While the seal is rather simple, the consequences can be rather harsh if the scribing failed.
Once the technique is successfully performed, both creatures will become instantly familiar with each other and will be able to detect each other as though Sensing Chakra and Detecting Emotion permanently, with the same range. In addition, the partners will gain a +4 bonus to Str-based and Int-based checks made to interact with each other, as well as improving the flanking bonus to attack rolls and aid another bonus to checks by +1 when made with the partner.
Once the seal is placed on a creature, it becomes permanent and takes one seal slot. It cannot be broken except by means such as Gekata no Fuukatsu, and even in that case, if both seals aren't broken at the very same time, the process will fail. A single creature can only be bonded to 2 other creatures without problems; any more and the sealing process will fail.
If a creature's partner dies, it is likely to fall in depression and have a hard time coping with its connection's death. Suicide after the death of one's partner is frequent, and complete refusal to accept another bond afterward is even more.
Expendable Components:
Enough of both the partner's blood to paint the seal over the two creature's body. Scribing the seals requires a Craft (calligraphy) check (DC 15) to be made, not necessarily by the user, and takes 5 rounds. If the check was failed, the sealing process will fail without the user noticing until the end, when the creature on which the seal was failed to be scribed properly falls unconscious for 1 hour.