Stormstrike

Stormstrike is an instant-cast spell learned only from Enhancement talent tree that grants an instant attack with all equipped weapons dealing 125% weapon damage and applies 15-second debuff that increases critical strike chance of Lightning Bolt, Chain Lightning, Earth Shock and Lightning Shield spells against the target by 25% (35% when glyphed). Focused Strikes talent increases damage of Stormstrike.

Functionality
When you cast this spell, you immediately launch a melee attack against the currently targeted opponent, which has a normal chance to hit, and is subject to normal combat procs like Windfury. (Dual wielding shamans strike with both weapons simultaneously as the description above states, although a shaman does not need to dual wield in order for Stormstrike to be useful to them.) If you are in between swings of your weapon and hit your target with Stormstrike, it will not count as another normal swing or disrupt the timing of your attacks. For example, if you take 3 seconds between weapon swings and use Stormstrike 1 second after you have struck your target with a normal swing, you will only have to wait 2 more seconds before taking another normal swing. If you hit the target with Stormstrike right before you were timed to land a normal melee hit, you will launch the normal melee attack right after the Stormstrike instead of having to wait another few seconds before swinging again. In this way, it is similar in certain ways to the Windfury proc in that it allows the shaman to hit their target twice in a short span of time. The target also acquires a Stormstrike debuff, which lasts 15 seconds.

Tips and tactics

 * Stormstrike is not considered a spell, meaning you can still use it even while silenced.
 * Earth Shock is the most used shock in Enhancement Shaman's arsenal. Lightning Shield, in most cases triggered by Static Shock, can critically hit now. Lightning Bolt and Chain Lightning are used mainly after gaining five charges of Maelstrom Weapon.
 * Because Stormstrike and Windfury deal damage based on the damage range of the equipped weapons regardless of their speed, an enhancement shaman should have always have the slowest possible weapons equipped. This became even more important in patch 3.1.0, as Flametongue Weapon no longer favors fast weapons in any way.
 * Stormstrike is meant to replace Primal Strike after reaching level 29.