During the Eclipse, to achieve his dream of obtaining a kingdom, he sacrifices the Band of the Hawk to become the new member of the God Hand and is rechristened as "the wings of darkness" Su cumpleaños es el 5 de enero Femto (Japanese: フェムト, Hepburn: Femuto).

[5] This causes a distraught Griffith to sleep with Princess Charlotte in a moment of weakness, leading to his imprisonment and crippling torture for one year before being rescued by the reunited Band of the Hawk.

[9] Upon inflicting a fatal injury on Ganishika to create a global interstice, a mixing of the physical and supernatural worlds, Griffith establishes the kingdom of Falconia as the last bastion of humanity under a dictatorship.

Griffith's characterization has been the subject of studies, with it discussed whether his betrayal at the end of the Golden Age Arc was an autonomous decision or caused by external factors transcending his control.

[11] In her analysis of transhumanism and its connected ethical issues in Berserk, Natalia Kućma discusses Griffith, mentioning the modification of his "subjectivity and physicality in exchange for the realization of his dream of his own kingdom.

"[12] Anne Lauenroth of Anime News Network called Griffith the "perfect villain", praising the human aspect of his character and his hamartia that leads to his choice in the Eclipse.

[13] Griffith placed second in Paste's list of the "20 of the Greatest Villains in Anime", with Toussaint Egan calling him the "perfect foil to Berserk's Guts—two men whose battle against one another epitomizes the thematic struggle between fate and self-determination.