Abjuran

Abjuran was a mana surge formed from potent arcane residue within the Spire of Abjuration. His existence was short-lived, as shortly after he first formed, he was destroyed by the Cabal.

Through Fel and Highmaul
Before Naz'groth could further analyze the source of the late Jorikk's power, the arcane potency within the Spire itself manifested into an almighty aberration of mana: Abjuran. The abomination proceeded to attack the Cabal, assaulting them with all kinds of arcane-based abilities beyond even Jorikk's capabilities. Abjuran even succeeded in collapsing the floor of the Spire's chamber, causing the group to plummet to a lower level of the tower. Eventually, the monstrosity found itself at its own end akin to Jorikk, and it too faded into nothingness.