Mithyn

Mithyn is the mysterious Goddess of Magic mentioned many times throughout the game. During the interlude between chapters 2 and 3, she discusses Zelica's captivity with Mystery Divine Being as well as referencing how exploring The Tower seems to have broken King Alonon's spirit once he explored deep enough.

Seemingly new (or perhaps rediscovered) she is one of the few Goddesses who seem to be positive of Simon. She is confirmed to speak with mortals on many occasions. Most commonly the leader of her cult, Vera, and many of the members of her cult, a variety of mages working to improve their community.

As the Goddess of Magic, she is shrouded in mystery until the invasion of Erosia, when she meets Simon in the Tower during the war on Thenours. She confirms that she's the Goddess of Magic and offers some help, but seems mostly concerned about other matters. After she reacts strongly to him attempting to approach he, Simon describes her as someone who looks like she was deeply hurt in the past. She reacts to his inquiries with cautious optimism before disappearing into the Tower.