Celestial / Cosmic
A great war between the forces gods, descended to earth. Culminates in the Overgod Ao granting godhood to several human heroes on the slopes of Mount Waterdeep.
When the gods walked among mortals during the Time of Troubles, they were cast down to the world by the mysterious Overgod Ao in 1358 DR. Until then, none but the gods had known of Ao’s existence, and since then, we have learned little more. As all know, the crisis began with the theft of the Tablets of Fate by the vile and ambitious gods Bane and Myrkul, later joined by Bhaal. These mystic artifacts supposedly determine the extent of the gods’ power, and dictate how they use that power. As punishment for this affront, Ao cast down the gods (or the ones that humans worshiped, at any rate) and then demanded that they return the tablets to him. But Ao was not omniscient, it seems, nor overly wise. The gods didn’t seek out the tablets, and thus it was left to mortal heroes to sort out the mess. They did so, their efforts culminating in Waterdeep. It was on the slopes of Mount Waterdeep that Ao was last seen, when he granted godhood to the human heroes Kelemvor, Midnight (who became Mystra), and Cyric.