Reading general medical books and regular practice bear fruit. As your healers discover the secrets of medicine, they heal more injured warriors. Conduct this Study to increase the capacity of Infirmaries.
| Level | Drafts | Gold | Time | Requirements | Infirmaries' capacity | Power |
| 1 | 250 | 41.5K | 1w 12h 00m 00s | Scholars' Hall 4, Cardinals' restoration speed 1 | 15 | 13M |
| 2 | 340 | 55.5K | 1w 4d 00h 00m 00s | Cardinals' restoration speed 2 | 30 | 13M |
| 3 | 470 | 73.5K | 2w 2d 00h 00m 00s | Cardinals' restoration speed 3 | 45 | 13.5M |
| 4 | 660 | 105K | 3w 3d 12h 00m 00s | Cardinals' restoration speed 4 | 60 | 13.5M |
| 5 | 945 | 155K | 5w 4d 12h 00m 00s | Cardinals' restoration speed 5 | 90 | 13.5M |
| 6 | 1 400 | 250K | 9w 4d 12h 00m 00s | Cardinals' restoration speed 6 | 120 | 13.5M |
| 7 | 2 100 | 420K | 17w 2d 12h 00m 00s | Cardinals' restoration speed 7 | 150 | 14M |
| 8 | 3 200 | 745K | 32w 6d 00h 00m 00s | Cardinals' restoration speed 8 | 195 | 14M |
| 9 | 4 950 | 1.4M | 65w 3d 12h 00m 00s> 1 Year(s) | Cardinals' restoration speed 9 | 240 | 14M |
| 10 | 7 850 | 2.8M | 137w 12h 00m 00s> 2 Year(s) | Cardinals' restoration speed 10 | 300 | 14.5M |
| 22.17K | 6.05M | 276w 3d 12h 00m 00s> 5 Year(s) | 300 | 136.5M |
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