Breakthroughs in healing remedies make it possible to save even more wounded warriors. Upgrading this Knowledge increases the Infirmaries’ capacity.
| Level | Gold | Soul Shard | Time | Requirements | Infirmary Capacity | Influence | Hero’s Experience |
| 1 | 87K | 17.5K | 34w 3d 00h 00m 00s | Training Speed 1, Oracle 36 | 5% | 15.5K | 41K |
| 2 | 135K | 26K | 51w 1d 00h 00m 00s | Training Speed 2, Oracle 36 | 13% | 35K | 51K |
| 3 | 180K | 38.5K | 10w 6d 00h 00m 00s | Training Speed 3, Oracle 37 | 22% | 79K | 64K |
| 4 | 225K | 57K | 112w 5d 00h 00m 00s> 2 Year(s) | Training Speed 4, Oracle 37 | 32% | 180K | 80K |
| 5 | 275K | 84.5K | 167w 3d 00h 00m 00s> 3 Year(s) | Training Speed 5, Oracle 38 | 44% | 405K | 99.5K |
| 6 | 320K | 130K | 248w 4d 00h 00m 00s> 4 Year(s) | Training Speed 6, Oracle 38 | 58% | 910K | 125K |
| 7 | 375K | 190K | 369w 1d 00h 00m 00s> 7 Year(s) | Training Speed 7, Oracle 39 | 75% | 2.05M | 155K |
| 8 | 455K | 280K | 548w 1d 00h 00m 00s> 10 Year(s) | Training Speed 8, Oracle 39 | 96% | 4.65M | 195K |
| 9 | 600K | 415K | 116w 2d 00h 00m 00s> 2 Year(s) | Training Speed 9, Oracle 40 | 120% | 10.5M | 235K |
| 10 | 915K | 610K | 1 208w 6d 00h 00m 00s> 23 Year(s) | Training Speed 10, Oracle 40 | 150% | 24M | 290K |
| 3.57M | 1.85M | 2 867w 4d 00h 00m 00s> 54 Year(s) | 150% | 42.82M | 1.34M |
English