Vine Immortality

Vine Immortality is a jutsu created by Tyler to become almost immortal. Whenever he is hurt or cut, he replaces that part of his body or bones with vines. These vines are invincible and can't get cut or broken no matter how powerful the attack. The only way Tyler can get hurt without replenishing himself is by piercing his heart. But he has two hearts. One made of vines and one is regular. Its unknown where the vine heart is. When both are pierced, he dies.