Battle Arena Toshinden(1996)

Battle Arena Toshinden is an anime series following master swordsman Eiji Shinjo as he seeks redemption after an interrupted tournament loss to the renegade champion Gaia. A year later, a mysterious warrior begins systematically defeating previous tournament champions using their own techniques—and Eiji suspects it may be his long-lost brother, Sho. As this powerful new opponent targets the world's greatest fighters, Eiji and his rival-turned-ally Kayin race to uncover the truth before they become the next victims. The mystery leads them to the Organization, a malevolent syndicate plotting global domination. With his friends' lives hanging in the balance, Eiji must prepare for the ultimate battle that will determine the fate of the tournament—and the world itself.