Onslaught is a way to deal more damage than usual, similar (but orthogonal) to Critical Hits. These Fatal Hits have a certain chance to be triggered and deal 60% bonus damage. Note that Fatal does not replace Critical — it’s possible for a hit to be both Critical and Fatal at the same time. Onslaught can be added to weapons through the Equipment Upgrade system. The chances of triggering Onslaught is proportional to the weapon's Tier:
| Weapon Tier | Triggering Chance | Avg Dmg increase at tier |
|---|---|---|
| 1 | 0.50% | 0.30% |
| 2 | 1.05% | 0.63% |
| 3 | 1.70% | 1.02% |
| 4 | 2.45% | 1.47% |
| 5 | 3.30% | 1.98% |
| 6 | 4.25% | 2.55% |
| 7 | 5.30% | 3.18% |
| 8 | 6.45% | 3.87% |
| 9 | 7.70% | 4.62% |
| 10 | 9.05% | 5.43% |
