The Crucible of Xaviliax
An ornately crafted chest 5X10X5 feet in proportion.
It was the divine relic by which Ascents would test themselves. If they were deemed worthy, they were instantly transported to the Heavenly Realm to fight in a Celestial War. If they were not deemed worthy, they were given a random, valuable trinket to use as they saw fit.
Taeloc had it bound and tossed into the Hole at Phistine.