Increases Critical Hit Damage against hostiles.
What it costs to research each level, how long it takes, and the effect at that level.
| LEVEL | TIME | HARD CURRENCY | COST | EFFECT |
|---|---|---|---|---|
| Lv 1 | 4m | Not purchasable | 875 Premium Mirror Dust | Premium Critical Damage vs Hostiles 0.3 |
| Lv 2 | 4m | Not purchasable | 950 Premium Mirror Dust | Premium Critical Damage vs Hostiles 0.5 |
| Lv 3 | 4m | Not purchasable | 1,025 Premium Mirror Dust | Premium Critical Damage vs Hostiles 0.7 |
| Lv 4 | 4m | Not purchasable | 1,100 Premium Mirror Dust | Premium Critical Damage vs Hostiles 0.9 |
| Lv 5 | 4m | Not purchasable | 1,200 Premium Mirror Dust | Premium Critical Damage vs Hostiles 1.1 |
| Lv 6 | 4m | Not purchasable | 1,300 Premium Mirror Dust | Premium Critical Damage vs Hostiles 1.4 |
| Lv 7 | 4m | Not purchasable | 1,425 Premium Mirror Dust | Premium Critical Damage vs Hostiles 1.7 |
| Lv 8 | 4m | Not purchasable | 1,550 Premium Mirror Dust | Premium Critical Damage vs Hostiles 2.1 |
| Lv 9 | 4m | Not purchasable | 1,700 Premium Mirror Dust | Premium Critical Damage vs Hostiles 2.5 |
| Lv 10 | 4m | Not purchasable | 1,875 Premium Mirror Dust | Premium Critical Damage vs Hostiles 3 |