Ascension

The Empire's downfall remains a mystery, with plagues, droughts, and death tolls becoming routine. Some blame a towering being with pure animosity towards humanity, who destroyed the most advanced empire in history, regressing it to a primitive state. This being, known as The Blight Lord, led a legion of beasts to consume the earth. A human discovered ancient relics and textbooks on how to combat these creatures, this allowed humanity to engage in wars known as "The Dark Age."

Enraged by the constant losses, The Blight Lord devised a new strategy to turn the tide in his favor. He bestowed his monstrous minions with the gift of immortality, ensuring that they would be revived shortly after their death. In addition, he cast a powerful spell that allowed them to teleport instantly to human territories, in order to ambush them when they were most vulnerable.

...Until that pesky human once again foiled the Blight Lord's plans.