更新 & 发布版本说明

Changes:
- Arena overhaul
- Battling in the arena no longer steals gold from opponents
- Winning in the arena gives access to unique items, gear, and materials
- The arena now requires the use of tokens to battle (every player will be given 10 with this update)
- Owned buildings can be moved/relocated
- The skill menu now allows sorting
- Full Bend and Dragonslayer now do more damage