Trismegistus

Trismegistus (トリスメギストス, Torisumegisutosu) is Junpei Iori's ultimate persona in Persona 3, Persona 3: FES and Persona 3 Portable.

History
Hermes Trismegistus is quoted as the founder and pioneer of alchemy, astrology and magic. The origin of the name Trismegistus, meaning "thrice-greatest", refers to the three subjects that he was a pioneer of. Hermes Trismegistus is said to be the combined knowledge of the Greek god Hermes with that of the Egyptian god Thoth.

Persona 3
Junpei's Persona evolves when Chidori uses her ability, Spring of Life, to resurrect Junpei, and confesses her love for him. Chidori's Persona, Medea, then fuses with Hermes to give birth to Trismegistus.

Appearances

 * Persona 3 : Magician Arcana
 * Persona 3: FES: Magician Arcana
 * Persona 3 Portable : Magician Arcana

Persona 3: FES - The Answer
Trismegistus also uses unique skills outside of his normal moveset when fought as an opponent, which are as follows:
 * Tempest Slash (in Colosseo Purgatorio)
 * Maragidyne (in Colosseo Purgatorio)
 * Tentarafoo (in Colosseo Purgatorio)
 * Power Charge (in Colosseo Purgatorio)

Trivia

 * Trismegustus' helmet and armor is a reference to the Ripley Scroll, a hermetic treatise purporting to tell of the process to fabricate the Philosopher's Stone, the powerful elixir said to bestow eternal life and transmute lead into gold. The references are the birdlike helm and wings, in the red stone it holds in its beak, and its name itself, Trismegistus being the honorary title of the famed alchemist Hermes; also, the Ripley Scroll makes continuous reference to the "Bird of Hermes".