Chapter 3: Summoning Ritual (Summoning a Servant requires a complex magical ritual. The compatibility between the original Heroic Spirit and the summoner in terms of spirit and body goes without saying, but most importantly, there must be a deep connection or medium with the Heroic Spirit. Summoning a Servant is a ritual beyond human capability, but with the assistance of the Greater Grail, the impossible becomes possible.)

Chapter 3: Summoning Ritual (Summoning a Servant requires a complex magical ritual. The compatibility between the original Heroic Spirit and the summoner in terms of spirit and body goes without saying, but most importantly, there must be a deep connection or medium with the Heroic Spirit. Summoning a Servant is a ritual beyond human capability, but with the assistance of the Greater Grail, the impossible becomes possible.)