Tyrfing

Tyrfing (ティルフィング) is the name of a next-generation Panzer Soldat model developed by Makarov.

Background
As part of his ambition to create a next generation Panzer Soldat model and prove his worth as both a man and a disciple of of G. Schmidt, Makarov started work on a new line of Soldats known as the Tyrfing. He collaborated with the former awakeners Rean Schwarzer and Crow Armbrust, as well as several other members of Class VII to help field test the new models, culminating in a showdown between two variants each piloted by Rean and Crow.

Tyrfing units were originally envisioned as the next stage in Panzer soldat technology, moving on from the Zauber Soldats and towards the level of performance achieved by Divine Knights. The main advantage of Divine Knights is said to be their ability to link with their awakener and gain autonomy, leading to synchronisation that ordinary machines cannot match. The Zauber soldats had used a similar system, but the Tyrfing unit avoids the disadvantageous mental degredation and mental pollution effects by instead using the engine to fuel a sense of autonomy in the machine, allowing them to learn from their pilot. They are equipped with the Zeiss Central Factory's latest Capel II computing system.

The field tests can be played as the mini-game Project Tyrfing which is accessed from the Infinity Corridor. Rean's Tyrfing S model first appears when it is miraculously summoned in a moment of hopelessness to repel ordinance from an automated Railway Cannon. Invoking the old method of summoning Valimar, Rean's eye flashes and he is basked in a golden aura, summoning Tyrfing S around him and allowing him to instantly intercept the artillery shell and slice it in two where it can safely detonate, saving the Nomadic Settlement which had been targeted. This action seriously damages Tyrfing S and it crashes to the ground, incapable of movement and visible charred.

Makarov and George Nome hastily repair the unit in time for it to be used in the final battle at Reverse Babel against Zoa Gilstein. Crow's Tyrfing X is also deployed. even these new models are no match for the divine knight of zero however whose seemingly unlimited power soon disables them. Unexpectedly, the spirits of Valimar and Ordine are able to inhabit the Tyrfing units giving them more of a fighting chance, and keeping Zoa Gilstein at bay until Elysium can be shut down.

After the conclusion, Rean and Crow converse with each other in the hangar from their Tyrfing units. When Rean departs, a mysterious message 'YES REAN' appears on the console.

Trivia

 * Tyrfing is a magic sword in Norse mythology.