For the passive feature/reaction that triggers this class action, see Wrath of the Storm.
Wrath of the Storm: Thunder is a Tempest Domain cleric class action triggered by the reaction of the same name. It allows the Cleric to strike back at an attacking creature using a Reaction, doing Thunder damage.
Attacker is within 2 m (7 ft). This means enemies with longer reach can attack you without triggering the reaction. Also, Opportunity Attacks will often land after you have left the 2 m (7 ft) range, even against enemies with normal melee range. However, opportunity attack can be triggered without leaving this reaction's range by attempting to Jump or Fly.
Attack does damage. This means completely negating the attack damage with abilities like Arcane Ward will prevent the reaction from triggering.
Attack hits. This means that the reaction cannot trigger on an attack that misses but still does damage such as Tenacity.
Bugs
The spell that is cast via this reaction is incorrectly flagged as a LightningDamageType, and as such will function with features that benefit Lightning spells, such as Crackling with Kereska's Lightning.
