Kakuzu's Abilities

Kakuzu's abilities reveal the depth of the problem: five hearts, each a separate life and a separate elemental mastery, housed in a body stitched together over a century. The episode lays out why the immortal earned his bounty-hunting infamy — kill him once, and four lives remain, his threaded limbs and mask-beasts wielding fire, wind, lightning, earth and water. Kakashi's squad confronts an enemy who must be killed five times over. The arc's tactical mountain comes into full view, and the climb looks impossible.