The Diablo 2 Wiki
The Diablo 2 Wiki archive is available for anyone looking for information on Diablo 2. All information here is pre-D2R but contains a lot of useful information that is still relevant. Updated sections for new D2R features can be found on the PureDiablo Diablo 2 section

Lightning Mastery

From Diablo 2 Wiki

Lightning Mastery

Required Level: 30
Prerequisites:: None
Synergies: None.
Details: Lightning Mastery works just like Fire Mastery; by substantially boosting the damage of every skill in the skill tree. Maxing this one out is a priority for most Lightning Sorceresses.

  • In early versions of the game, Lightning Mastery instead reduced the mana cost of lightning spells. At that time, each of the three masteries were unique.
Skill Level Progression [e]
SlvlDamage

SlvlDamage

SlvlDamage

SlvlDamage

1+50%6+110%11+170%16+230%
2+62%7+122%12+182%17+242%
3+74%8+134%13+194%18+254%
4+86%9+146%14+206%19+266%
5+98%10+158%15+218%20+278%