The ability to swiftly settle the mind and order one's thoughts is vital in war. Conduct this Study to speed up the Hero’s Stamina restoration.
| Level | Food | Lumber | Iron | Stone | Silver | Gold | Time | Requirements | Hero's Stamina Restoration Speed-up | Power | Hero's Experience |
| 1 | 3K | 1.5K | 0 | 1.5K | 3.75K | 340 | 00h 30m 00s | 1% | 190 | 3.2K | |
| 2 | 7.65K | 3.85K | 0 | 3.85K | 8.65K | 540 | 02h 30m 00s | Academy 2 | 2.25% | 435 | 4.8K |
| 3 | 19.5K | 9.65K | 0 | 9.65K | 20K | 920 | 06h 30m 00s | Academy 4 | 3.75% | 995 | 7.2K |
| 4 | 49K | 24.5K | 0 | 24.5K | 46K | 1.9K | 18h 00m 00s | Academy 6 | 5.5% | 2.3K | 11K |
| 5 | 125K | 62K | 0 | 62K | 105K | 3.75K | 1d 18h 00m 00s | Academy 8 | 7.5% | 5.25K | 16.5K |
| 6 | 315K | 160K | 0 | 160K | 245K | 7.8K | 4d 03h 00m 00s | Academy 11 | 9.75% | 12.5K | 24K |
| 7 | 800K | 400K | 0 | 400K | 560K | 19.5K | 1w 4d 00h 00m 00s | Academy 13 | 12.25% | 28K | 36K |
| 8 | 2.05M | 1.05M | 0 | 1.05M | 1.3M | 42.5K | 3w 5d 00h 00m 00s | Academy 16 | 15% | 64K | 54K |
| 9 | 5.15M | 2.6M | 0 | 2.6M | 2.95M | 98K | 9w 1d 00h 00m 00s | Academy 19 | 18% | 150K | 80.5K |
| 10 | 13M | 6.5M | 0 | 6.5M | 6.8M | 230K | 22w 5d 00h 00m 00s | Academy 21 | 21.25% | 340K | 120K |
| 21.52M | 10.81M | 10.81M | 12.04M | 405.25K | 38w 1d 00h 30m 00s | 21,25% | 603.67K | 357.2K |
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