Mona Megistus is a 5-star Hydro-wielding Catalyst user in Genshin Impact considered one of the game's top-tier Sub-DPS and Support characters, even without her Constellations. Mondstadt astrologist Mona was the first 5-star character in Genshin Impact to use a Catalyst weapon and has remained one of the top Catalyst users in the game, holding her own among the many new Catalyst users including three 5-star characters: Klee, Yae Miko, and Sangonomiya Kok The Blackcliff Agate, which is the catalys...