The First Challenger.

Salvini found some armor and a spear that granted her access to world power very quickly. She found other things to bolster her strength then she went on a hunt to double her feats. A lot of people with feats died by her spear. It was after she had more than doubled her feats that she went to the 1st ring. No matter the outcome of the challenge, she will not be found wanting.

"It seems I am the first. Now I have to defend it." She said as she reached the zeroth ring.

The zeroth ring is a small white and smooth spot on the ground that is wide enough for one person to stand on. It is like a white blemish in this natural landscape. The entire arena will be destroyed leaving this white spot and a 3 meters space above it. Since flying is banned, only the person within the circle will be the last man standing. Everyone else can watch on or try to kill the person in the Zeroth ring before the 1st ring is destroyed.