Dokumiyaku

Dokumiyaku (毒見役, Taster for Poison) is a technique that uses the Chishikitaikei and Senyuuken abilities of Karitori.

Usage
The user manifests a number of small, white bird-like creatures using their chakra. The number the user is able to form is dependent on how much chakra they have. According to Ren Kouen, Dokumiyaku can be created by only having Chishikitaikei, but one would be incapable of using it to its full extent. By also having Senyuuken, the user's Dokumiyaku become able to enter the body of another person and drain that person's chakra, turning the Dokumiyaku black. The user then becomes able to absorb someone else's chakra and convert it into their own from long distances, and thus overcome two weaknesses of Senyuuken: Having to be in melee range, and having to take foreign chakra into themselves to convert it.

There are various ways to use Dokumiyaku. Ren Kouen shows exceptional ability as its creator, being able to gather them to form a shield to absorb massive ranged attacks, or a weapon to deal damage to an opponent while absorbing their chakra. Form, range and speed of movement seems to come with mastery of Shape Transformation using the technique, with users like Ren Kouen being able to send Dokumiyaku at bullet speed across distances as far as his eyes can see.