Legend Lore: The Time Phage

The Time Phage refers to a Divine Curse that has yet to be laid upon the mortal world. It has been divine that a group of Arcane masters of the future civilization of Eonis will craft a mighty spear known as The Banisher to seal away the Elder Evil Shothotugg permanently, locking it far away from the material plane in a perpetual stasis, not killing it, but preventing it from doing any further harm.
The Time Phage's true power has yet to be foretold, as the staff will never be completed, and the Time Phage cursed far more than the Elder Evil it was built for, Ravaging the entire civilization of Eonis, dooming it to perish within 30 days.