You have a 50/50 shot at getting a minotaur. If you can beat the league, one of your opponents (chosen at random) will offer to join you. Return on that day, make sure you have an open slot in your school, and save the game. the Mongrel Butcher badge, talk to the proprietor of the shop (Scotia) and he'll set up the Historian's league for seven days later. In Cognito, The Marksman, The Laughmaster, and No. You'll also earn a few strange pieces of equipment: Battles will be a breeze after you earn it. This area-damage skill is by far the strongest attack in the game.
Surviving characters will each learn the Hell's Fury skill, which Sarenenutet demonstrates in the first round of the battle. You will do battle with four summoners in the first four rounds and take on a reborn Sarenenutet in the final battle. When you enter, you'll be automatically enrolled in the Fulfill Your Promise league, a five-round wilderness battle that is perhaps the toughest challenge in the game.
When you've completed all of the prerequisites, glowing lights will lead you to the tip of the Southern Expanse, where Usus will locate a hidden portal.