Caster (Fate/Extella)

Японское имя:	キャスター
Прозвище:	Archimedes, The Wizard of Balance

Caster is a Masterless Caster-class Servant charged with the security of SE.RA.PH in the Moon Cell Holy Grail War. He is an independent Servant in the conflict and the main antagonist of Fate/Extella.

Type moon wiki