Spellplague

The Spellplague, also known as the Blue Breath of Change, was a cataclysmic event many believed to be the result of the goddess Mystra’s murder by Cyric, orchestrated by Shar. Magic had been bound within Mystra’s Weave for eons, and her death tore the Weave apart, unleashing raw magic and causing the cataclysm.

The Spellplague disrupted arcane magic and permanently scarred magical items, making both unpredictable and unreliable while creating ley lines heavy with wild magic activity. Thousands of spellcasters were either destroyed or went insane due to the collapse of the Weave, and those that “survived” still lost a lot of their arcane ability. Deities were also affected, with some losing their divine powers and a few even perishing (directly and indirectly). Even other planes of existence felt its impact, traveling through time and space and even reaching the world of Abeir through the planar gates.

The Spellplague lasted from 1385 DR – 1395 DR.