The Legio II Adiutrix did not have the cognomen Pia fedelis. That was the cognomen of the Legio VII Claudia Pia Fidelis. The Legio II Adiutrix (rescuer)was founded by the emperor Vespasian in 70. It was deployed against the Batavian rebellion in the Germania Inferior. It was then transferred in Britannia. It was deployed in Domitian's Dacian War and in Trajan's Dacian Wars.\after that it was stationed in Aquincum (modern Budapest),
There were no unicorns on Roman shields. The Roman legions had their emblem on their shield and no legion had the unicorn as an emblem. The closest thing was the carpicorn, which was the emblem of five legions: I Adiutrix(rescuer), the II Adiutrix II, the Augusta (Augustan), the IV Scythica, (Scythian ), and the XXI Rapax (rapacious)
This legion was actually reconstituted by Vespasian
The Lagio I Italica was founded by the emperor Nero in 66.
The Legio I MInervia was founded by the emperor Domitian in 82
Byzantium and Etruscans and the emperor of Julius Caesar
The Fire Hawks (Update) The Legion of the Damned could be a chapter but some say they are ghosts or the Emperor's will manifest.
Legio II Traiana was founded by the emperor Trajan in 105 together with XXX Ulpia Victrix, for the campaigns in Dacia. This legion was used in Trajan's campaign against the Parthians. In the late second century it helped to defend Alexandria.
The Legio II Italica was established in 165 by Marcus Aurelius.
The Legio II Italica was founded by the emperor Marcus Aurelius in 165. It was stationed the Roman province of Noricum, in the mid Danube area, where Germanic incursions were frequent. This legion had the emblem of a she-wolf and twins. Originally recruits from Italy were its soldiers. One of its outstanding honors was the relief of Aquileia in 169 AD.
In the military of Imperial Rome, the largest groupings of soldiers were legions (~5000). Imperator is a title given to the Emperor. This means military commander. He would be the ultimate authority on military affairs in the Imperial Roman military. The modern rank of General was assigned to a Senator, and this rank was called legatus legionis (legion commander). This would be subject only to the Dux/Imperator. This is the rank that would command the legion. Praefectus castrorum was the chief executive officer (under the legatus legionis). This officer was responsible for keeping equipment in order, the legion organized and lodged, and the training of the legion.
The Legio XIII was not founded by an emperor. It was founded by Julius Caesar. He levied it to march against the Belgae of northern Gaul and It was the legion with which he r crossed the River Rubicund to wage his civil war against the forces of the senate. It was reconstituted by Octavian (the future Augustus to suppress the rebellion of Sextus Pompeius (son of Pompey) in Sicily.It acquired the cognomen Gemina (twin) after being reinforced with veteran legionaries from other legions after the civil war against Mark Antony.
Become a legion? A legion was a section of a Roman army. A legion is about 6 thousand soldiers.