Hassan-i Sabbah was responsible for boosting the organization's reputation as the most feared group in the world. The word 'assassin' is said to be derived from the word hashashin, meaning 'user of hashish' in Arabic. The assassins of the group use a drug called hashish to attain an enhanced mental state to reach superhuman capability. They used assassinations as a political tool. Hassan was a part of a smaller group which practices the most brutal methods. Hassan-i Sabbah is part of a large religious organization in the Middle-East, and they practice a very strict and fanatical doctrine. Also known as 'The Old Man of the Mountain'. Hassan-i Sabbah is the leader of a legendary assassination organization in the Middle-East. He is also resistant to wind-based attacks due to him enduring sandstorms during his lifetime and he uses throwing daggers. Instead, he is exceptionally skilled at stealth and espionage. True Assassin is loyal to Zouken and prefers to avoid direct combat unless he has a plan to win the battle.Īs an Assassin class, True Assassin is not made for melee combat. He can only be seen on the Heaven's Feel route. True Assassin served as Zouken's Servant in the fifth Holy Grail War.