Fire Crystal fortifies the shield by changing its texture and increases Infantries’ Lethality.
| Level | Prerequisites | Research Cost | Time | Bonus | Power |
|---|---|---|---|---|---|
| 1 |
Flame Squad Lv. 3 |
|
20:00:00 |
Infantry Lethality: 1.50% |
82500 |
| 2 |
War Academy FC2 |
|
1d 04:00:00 |
Infantry Lethality: 1.50% |
74250 |
| 3 |
|
1d 13:00:00 |
Infantry Lethality: 3.00% |
90750 | |
| 4 |
Flame Squad Lv. 4 |
|
2d 03:00:00 |
Infantry Lethality: 3.00% |
99000 |
| 5 |
War Academy FC3 Flame Squad Lv. 5 |
|
2d 20:00:00 |
Infantry Lethality: 3.00% |
95700 |
| 6 |
|
3d 20:00:00 |
Infantry Lethality: 3.00% |
98175 | |
| 7 |
War Academy FC4 |
|
5d 04:00:00 |
Infantry Lethality: 5.00% |
122925 |
| 8 |
War Academy FC5 |
|
6d 23:00:00 |
Infantry Lethality: 5.00% |
120450 |