Centina

Centina is a large city in Teora and is home to a very popular arena. Centina has a Shop and Guild.

Arena
"Welcome to the Arena! Here, you can fight a wide variety of opponents for fame and glory!" - In-Game Description

After completing the second encounter in Yates's Cabin, the Centina Arena becomes open for business. Patrols in the Arena are special: the level range automatically adjusts based on which units you deploy. In addition, it rewards 40% more AP and GP than regular patrols. Each patrol has a slightly different Arena layout, for example, one layout has a raised platform to the side where ranged units can attack from.

In addition to Arena patrols, you can compete in the Tournament. See the page for details.

Unlocking Spymaster
If you have already crafted Ancient Locket, you can go here to view a cutscene that is part of the quest to unlock the Spymaster class for Reiner.