Destruction Sphere
Creates a sphere of annihilation around the caster
Destruction Sphere surrounds the caster with a shimmering barrier of annihilating force. The Stoneheart family considers it the pinnacle of abjuration: a defense that destroys anything trying to cross it.
The sphere extends 5 feet from the caster in every direction. A creature or object that touches or enters it takes force damage equal to ten times the HP of a 10th-level Barrier. If this reduces the target below zero HP, it disintegrates. The effect allows no save.
For every point of Intelligence above 20, the DC to dispel the sphere increases by 1%, and the caster gains 1% mental protection while it remains active. The caster cannot maintain another Barrier at the same time.
Powerful mages can teleport while carrying the sphere, although doing so demands immense concentration. Countering it requires overwhelming caster level, a specialized counter-barrier prepared after prior exposure and effective only once, or an attack during the spell's limited downtime.