Colosseum

The colosseum is a game mode that you can try after you reach Royal Capital Grandshelt.

Each colosseum battle you fight takes one colosseum orb. You automatically recover one spent colosseum orb per hour.
Whenever your rank rises, all of your colosseum orbs recover.

Each battle round has monsters, which yield points when defeated. When you gain enough points, a boss battle occurs.

If you win the boss battle, you will unlock a higher round and possibly a higher rank. When you clear a round, you will obtain some rewards.

You cannot use items in the colosseum.