Mystic Arena
Its levels cost Ash Logs. Later levels also cost Mahogany Logs (from level 20), Rosewood Logs (from level 40) and Pine Logs (from level 60).
Ranks
| 1 | 50 Unmelting Ice | Clear Raid Challenge Arachnetta Lv 150 |
| 2 | 100 Unmelting Ice20 Ectoplasm | Clear Raid Challenge Nostro Lv 250 |
| 3 | 1,000 Unmelting Ice100 Ectoplasm | Clear Raid Challenge Lady Emelda Lv 400 |
| 4 | 3  Black Pearl 5,000 Unmelting Ice500 Ectoplasm | Clear Raid Challenge Octobaddie Lv 700 |
| 5 | 100 Black Pearl 10,000 Unmelting Ice2,000 Ectoplasm | Clear Raid Challenge Glorbliorbus Lv 1500 |
Bonuses
| Level 5 | Unlock Handicapped [Mystic Arena 2-3F] |
| Level 10 | Unlock Lv +100 Challenge Boss |
| Level 15 | Unlock Handicapped [Mystic Arena 4-5F] |
| Level 20 | Add "Refresh Ticket" reward to Daily Quest [Cartographer 1] |
| Level 25 | Unlock Handicapped [Mystic Arena 6-7F] |
| Level 30 | Unlock Lv +200 Challenge Boss |
| Level 35 | Unlock Handicapped [Mystic Arena 8-9F] |
| Level 40 | Add "Refresh Ticket" reward to Daily Quest [Cartographer 2] |
| Level 50 | Unlock Lv +300 Challenge Boss |
| Level 60 | Add "Refresh Ticket" reward to Daily Quest [Cartographer 3] |
| Level 70 | Unlock Lv +400 Challenge Boss |
| Level 80 | Add "Refresh Ticket" reward to Daily Quest [Cartographer 4] |
| Level 100 | Add "Refresh Ticket" reward to Daily Quest [Cartographer 5] |
| Rank 1 | Unlock Handicapped Challenge |
| Rank 2 | Unleash Tab [ Super Dungeon ] |
| Rank 3 | Unlock Ultimate Trial Challenge |
| Rank 4 | Unlock a new Ultimate Trial |
| Rank 5 | Unlock a new Ultimate Trial |
Research
 Stone | Equipment Inventory Slot | +1 (up to 100) |
 Crystal | Handicapped Challenge's Passive Stats Reward | +2.5% |
 Leaf | Alchemy Point Gain | +2.5% |
History
Changes to this building across game updates.
- Bonuses
- +Rank 5 · Unlock a new Ultimate Trial
- Ranks
- −5 · 100 Black Pearl 10,000 Unmelting Ice 2,000 Ectoplasm · Stay tuned for future updates!
- +5 · 100 Black Pearl 10,000 Unmelting Ice 2,000 Ectoplasm · Clear Raid Challenge Glorbliorbus Lv 1500
- Bonuses