Wrath is a druid's first NatureDirect Damage offensive spell. Unaltered, it provides the greatest single-target DPS of any druid spell, but this can change depending on talents and rotations.
Druids start with Rank 1 of this spell automatically.
Casting wrath to finish off a target at low health is more efficient than [Moonfire] and quicker than [Starfire].
Improvements
Talents
[Earth and Moon] causes your Wrath spell to apply the Earth and Moon effect on your target, increasing magical damage done to that target by 4% per point for 3 points. (13% max)
[Eclipse] gives your Wrath a 19.8% per point chance to give your [Starfire] an additional 30% crit for 15 seconds for 3 points. (60% max)
[Improved Insect Swarm] increases the damage dealt by Wrath by 1% per point for 3 points while Insect Swarm is on the target. (3% max)
[Moonfury] Increases the damage done by your Wrath spell by 3% per point for 3 points. (10% max)
Moonglow reduces the Mana cost of Wrath by 3% per point for 3 points. (9% max)
[Nature's Focus] (Restoration) increases the chance you'll resist spell interruption when casting your Wrath spell by 23% per point for 3 points. (70% max)
[Nature's Grace] all spell criticals have a 33% chance per point for 3 points to reduce the cast time of your next spell by .5 seconds. (100% max)
[Nature's Majesty] increases the critical strike chance of your Wrath spell by 2% per point for 2 points. (4% max)
[Nature's Reach] increases the range of your Balance spells by 10% per point for 2 points. (20% max)
[Starlight Wrath] reduces the cast time of your Wrath spell by 0.1 per point for 5 points. (.5 max)
Vengeance increases the critical strike bonus of your Wrath spell by 20% per point for 5 points. (100% max)
[Wrath of Cenarius] Grants your Wrath spell an additional 2% per point of your bonus damage effects for 5 points. (10% max)
Spamming Wrath does more damage than [Starfire] over a short period of time, but is not recommended for actual sustained DPS.
Wrath, when talented with [Starlight Wrath], in addition to the mage spell [Scorch] are the fastest two spells in the game without an associated cooldown.
More often than not, casting Wrath in PvP will be more effective than trying to cast the much longer [Starfire] spell.
[Starlight Wrath], 
[Nature's Majesty], Moonglow, 
[Nature's Reach], 
[Nature's Grace], Vengeance, 
[Improved Insect Swarm], 
[Moonfury], 
[Wrath of Cenarius], 
[Eclipse], 
[Earth and Moon], 
[Nature's Focus]
20
[Moonfire] and quicker than 
