- Evolved skill
- No
Rules and interpretation
Maximum rank and unlock level are read from the Survivors build. Damage and cooldown depend on rank, gear and runtime formulas; this entry does not substitute Diablo II values.
Evolution: reach rank 8, hold 
Lightning Mastery, reach hero level 30, then open a chest.
Class
Evolves into
Evolution catalyst
Boosts
| Name | Bonus per rank |
|---|---|
 Chain Lightning | 4% |
 Lightning | 8% |