Chakra tracking
Sasuke Uchiha, Suigetsu Hozuki, Jugo
Naruto manga ch.348
Snake, Sound (former)
16 (June 20th)

Sasuke recruited Karin into his 'Snake' team because of her uncanny ability to track individuals through chakra over long distances and with high accuracy.  Karin was one of Orochimaru's suboordiantes and head of the North Hideout where many of Orochimaru's Cursed Seal experiments took place.  She remained loyal to Orchimaru even after it was unclear whether he was defeated by Sasuke.  However, when Sasuke approached her, she had no hesitation in joining the team because she has a big crush on him.  Suigetsu has hinted that Karin was involved in experimentation on Sasuke but it was unclear what exactly she did.  In truth, Karin wants to travel with Sasuke alone, especially since Suigetsu constantly gets on her nerves.  She has demonstrated a temperment similar to Sakura and may also possess enhanced strength and possibly medical ninjutsu skills.
{|border="0" cellspacing="2" cellpadding="2" style="text-align: left; background-color: rgb(255,204,51); width: 790px" |style="width: 100px; vertical-align: top"| |style="width: 264px; vertical-align: top"|Mind's Eye of the Kagura (Bloodline?)  Karin can detect and track the chakra signature of other people for several miles with a high degree of accuracy. |style="width: 100px; vertical-align: top"| |style="width: 264px; vertical-align: top"|Chakra Healing (Bloodline?)  By allowing others to bite into her arm, Karin can give them a portion of her chakra to instantly heal even their most serious wounds. |}[1][2][3]