A shell world.
Corey had read that in the realm and scope of Immortals, several methods were created to allow Immortals to be able to battle with their full powers and abilities.
The reason for this was because if a Tier 7 decided to unleash his or her power without restraint, the chances of a world remaining in one piece was close to nil.
Even if a world survived the powers of a Tier 7, the damage done to the world would be downright irreparable.
The increase in power from Tier 7 to Tier 8 was so massive that many Tier 7s said that a Tier 6 had a higher chance of killing a Tier 7 than a Tier 7 being able to kill a Tier 8.
For a Tier 6 to be able to kill a Tier 7, it was considered nigh impossible. But many said that the chances of such a thing happening was higher than a Tier 7 killing a Tier 8.
And this belief was also the same for a Tier 8 killing a Tier 9.
