The Triarii were the most skillful infantry to be found in the Ancient World. They were the Principes who had survived that crucible of life in the Roman Army. They were equipped with a long thrusting spear a gladius, a shield and and were positioned and were used differently than the Principes and Hastati. They were positioned behind the two lines and used and used rarely and as a last resort, but always effectively. In the game the Triarii is a unit to be reckoned with, keep away from him and attack him only with ranged units or unit s that take beatings.