Mourning is a passive skill on the root branch of Vex's Here Comes Trouble skill tree in Borderlands 4.
Effects
Vex's Kill Skills gain increased Effectiveness.
- Kill Skill Effectiveness: +6% per rank
| Rank | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Kill Skill Effectiveness |
+6% | +12% | +18% | +24% | +30% |
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