"You're...the Emperor!? Thank you very much, Your Majesty. I am Seimei. I came to take down the demon that was terrorizing the town, but I was possessed by it instead... But for you to defeat that Lust Liquor. You must possess a power that transcends humankind."
Diviner is an class exclusive to the mobile version of Romancing SaGa 2. In order to recruit the class, you must progress through the black/purple gem maze in the Maze of Memories (Approximately 7-8 floors), fight a battle against an ogre, and choose to spare it after you win the battle.
Diviners are somewhat slower copies from the Tacticians with some even lower status, well except for magic.The good side of them is their Dexterity, you'll get some idea with what you will use for them, Bows and Fleurets. If you are going with an party of mages, pick an Female Holy Order, a Diviner, an Tactician, an Court and a Free Mage, why not? Diviner is only class has access to Dark magic.