Shaman · Elemental Combat · tier 3 · from level 20

Elemental Focus

+9.9 Lightning Bolt

1/1 · level 60 · per 100 mana · and 6 more

Elemental Focus

Rank 1/1

Gives you a 10% chance to enter a Clearcasting state after casting any Fire, Frost, or Nature damage spell. The Clearcasting state reduces the mana cost of your next damage spell by 100%.

Lightning Bolt +11.1% +9.9 Fire Nova +11.1% +9.1 Flame Shock +11.1% +9.1 Lava Burst +11.1% +9.0 Earth Shock +11.1% +7.3 Frost Shock +11.1% +7.2 Chain Lightning +11.1% +2.8

Averages, counting crits and misses, for a level 60 Shaman with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.