Ashley learns Herakles from the Grimoire Intensite, dropped by the Harpy at the Undercity East. Herakles is a stats-modifying spell, as casting it increases the strength of the player character by 1/10 of his base STR value. The spell costs 12 MP and induces the status STR-UP. In Battle Mode, when casting the spell, the range shape is spheroid and it affects a single target. Herakles can also be affected by equipping Gems.
Its counterpart is Degenerate, a Sorcery spell that cancels Herakles' effect upon use. Herakles is also removed whenever the player character exists from a room.
Heracles is a hero in Greek mythology, and the son of Zeus and Alcmene, foster son of Amphitryon and great-grandson (and half-brother) of Perseus. He was a paragon of masculinity, the ancestor of royal clans who claimed to be Heracleidae (Ἡρακλεῖδαι) and a champion of the Olympian order against chthonic monsters. In Rome and the modern West, he is known as Hercules. The Romans adopted the Greek version of his life and works essentially unchanged, but added anecdotal detail of their own, some of it linking the hero with the geography of the Central Mediterranean.
Extraordinary strength, courage, ingenuity, and sexual prowess with both males and females were among the characteristics commonly attributed to him. Heracles used his wits on several occasions when his strength did not suffice. Together with Hermes he was the patron and protector of gymnasia and palaestrae. He was playful figure who used games to relax from his labors and played with children. By conquering dangerous archaic forces he is said to have "made the world safe for mankind" and to be its benefactor.