Annihilation
Upon activation of this spell, it will create a large black mass in the form of a sphere above a town. That gradually grows bigger with every soul or life energy it absorbs. Until it after a period of time it has reached its maximum capacity and blows up into a large black shockwave that lays waste to the entire town.
Usage:
Once per thread this black sphere appears, disintegrating any npc inhabitants of the town as well as dealing a continuous increasing rank damage for the next 6 post to every enemy mage. That is not part of Savage Skull. Starting at D off course.
With every post the orb increases in size and strength from siphoning the npc characters in the thread. Making it able to deal H rank damage in its sixth post. Then at the 7th, the orb has grown large enough to take out the entire city by exploding and releasing a devastating black shockwave that even crumbles buildings and the very infrastructure. With a total strength of H rank.