The two of them quickly scuttled over to the dueling colosseum. Rui had to admit that it was definitely bigger than he had expected it to be. It took up a portion of the entire floating island, and was much more than even a kilometer in diameter!
('This is the kind of arena that is fit to host Squire-level battles,') Rui noted.
Martial Squires, particularly higher-grade Martial Squires were capable of unleashing immense force. An ordinary colosseum would simply be destroyed and ravaged by a single Squire-level battle, let alone a whole series of them.
Furthermore, a smaller colosseum would be a disservice to long-range Martial Squires who required range. Thus, this sort of colosseum was necessary to do justice to Martial Squires of all ranges. Given that these challenges decided which one of the combatants survived, they could not unfairly benefit one kind of Martial Squire more than the other.