Born from the first collapse of a proto-rift during the Arcane Fracture's formation, Voidweaver emerged as a self-stabilizing entity that threads anti-magic through reality's fabric. It learned to manipulate null energy not as destruction, but as a foundational element for temporary rift architectures that test wielders' mastery over contradictory forces.

Manifests as semi-corporeal tendrils of entropic matter that crystallize under magical stress. Capable of phasing through solid objects but leaves temporary glyph burns. Core emits inverse mana signatures that disrupt spellcasting while paradoxically reinforcing rift boundaries through controlled collapse sequences.

Serves as both hazard and guide in advanced rift trials, creating adaptive challenge scenarios where wielders must balance arcane output with anti-magic absorption to stabilize volatile course geometries.