The Chaos energy was so violent that it consumed its own caster, destroying more than half of Veeza's body in its wake. Collapse and Howling Void were a deadly combo impossible to perform for anyone who wasn't a Lich or an Abomination.
Collapse prevented the enemy from escaping, even blocking dimensional magic thanks to the spatial distortion it created. Howling Void, instead, was a sure kill spell capable of piercing through mountains.
Chaos magic feasted on the light element, even that of its master. Abominations had no such problem because they had none, Liches, instead, could simply regenerate from a wound that would kill any other undead.
Even a single Howling Void was enough to turn a blood core black, but a Lich's body was just a vessel. Their real mana core was stored inside their phylactery, safe from the chaotic energies that were now ravaging Veeza.