The Calm Lands Arena (Monster arena) is located at the eastern most point of the calm lands (See the red dot on the map). To be able to catch monsters from other areas, you have to capture all the monsters from Calm Land first. When a monster simply vanishes from battle after being defeated, it means you have caught it. There are special weapons you can purchase from the Monster Arena Trainer that you can use. There is one weapon for each character. When capturing, make sure that you equip the weapon. Once th monster is felled, you capture it and it sends to the Monster Arena Owner.After you capture a series of monsters, you can fight a new series of monster. The Original Monster Conquest.