| Level | Description :(Effect) | Actual Effect |
|---|---|---|
| Lv. 2 | Razor's Edge I: Extends the duration of Adrenaline Rush. If triggered again while the skill is active, extends the effect duration once. | ??? |
| Lv. 4 | Razor's Edge II: Additionally, if triggered again while the skill is active, further increases attack. | ??? |
