Hōki (Takumi)

is a ninja from the Takumi Village. He and his group abducted Matsuri, Gaara's student, to get access to Gaara's Shukaku powers to revive Seimei, Takumi Village's founder. He had a brief fight with Gaara in which he summoned all the weapons of his fallen team mates and used them to barrage Gaara with their combined attacks, short on chakra and his supply of sand had ran out he quickly fell. Then Naruto came to his defense but he also wasn't strong enough to hold against the power of the combined might of the Takumi Village so about to finish of Naruto, Gaara used the last of his chakra to protect him. Annoyed he turned his attention back to Gaara and trapped him in a sphere that siphoned off the remaining of Gaara's chakra. He sacrificed his own body (and life), added with Gaara's chakra, to revive Seimei. But getting his chakra drained brought Gaara into his Shukaku form and he killed Seimei.

Trivia

 * His name, meaning "treasured tortoise" comes from Genbu, the Black Tortoise of the North.
 * He had a sword that could shoot out streams of fire.