Sudarshan Chakra Yamaraj

Noble Phantasm
The Chakra that Stirs Up My Raging Flames(Sudarshan Chakra Yamaraj)
Japanese name:	転輪よ、憤炎を巻き起こせ(スダルシヤンチヤクラ ・ヤムラ一ジ)
Owner:	Archer
Type:	Anti-Army
Rank:	A+

Sudarshan Chakra Yamaraj: The Chakra that Stirs Up My Raging Flames (転輪よ、憤炎を巻き起こせ(スダルシヤンチヤクラ ・ヤムラ一ジ), ()^?) is Ashwatthama's Noble Phantasm.

Unusually, he made a weapon he didn’t possess in life, that he couldn’t possess, into a Noble Phantasm.
He who has a huge chakram in his hand, at the time of being summoned as a Servant, freely manipulated this weapon, and continued engraving it in his memory as a warrior.

In other words, all of his usage of the chakram is self-taught, an original that wasn’t taught by anyone.