In the war-torn realm of Velthar, siege warfare was endless. Castles fell, fortresses crumbled and empires burned. Tasked with finding ways to better protect themselves against other kingdoms, the Magineers of Velthar devised the ultimate defense: the Sentry; Living constructs forged in magically imbued metal.

These living war towers were more than walls, they were warriors in their own right. Capable of binding the spirits of fallen allies to itself. Sentries put an end to war faster than anyone had hoped.

Soon, the age of castles passed. Wars ceased, peace came and still the Sentries remained. Waiting, watching. Now, as the Athelan Battlegrounds call for champions from across time and space, one Sentry has been reactivated, its phantom defenders eager for battle once more.