- 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 
Cold Mastery, reach hero level 30, then open a chest.
Class
Evolves into
Evolution catalyst
Receives synergy from
| Name | Bonus per rank |
|---|---|
 Frost Nova | 15% |
 Ice Blast | 15% |
 Glacial Spike | 15% |
 Blizzard | 15% |
 Frozen Orb | 15% |
Boosts
| Name | Bonus per rank |
|---|---|
Blizzard | 5% |
Frozen Orb | 2% |
Glacial Spike | 5% |
Ice Blast | 8% |