Holy Power is a paladin resource mechanic, which works similar to the rogue's and druid's combo points. Holy Power can be gained through certain spell and talents, and is used for casting other spells.
When fighting, paladins will generally want to build up Holy Power by using their abilities. Once Holy Power has been built up, it can be consumed to augment specific Holy Power-based spells. For example, can be used to cast an instant-cast and mana-free heal. Common to all these spells is that they consume all the Holy Power the paladin currently possesses (up to 3), increasing in power depending on the amount consumed. Depending on the paladin's specialization and the scenario, this mechanic gives paladins several options for how to spend their Holy Power.
- Holy Power becomes available for Paladins at level 1.
- Holy Power exists as charges. It is possible to have 3 charges at a time. The passive ability gained at level 85 increases your capacity to 5 charges.
- Unlike a rogue's combo points, Holy Power appears in a "Holy bar" below the paladin's portrait (see picture). This makes it similar to a death knight's rune system.
- The spells using Holy Power doesn't need to be used on the same target the spells generating it were used on.
- Holy Power decays over time when not in combat. It must therefore be spent quickly before it's wasted. It decays approximately 10 seconds after leaving combat, one charge at a time. This means that a paladin with 3 charges will lose 1 charge after 10 seconds, another charge after 20 seconds, and the last charge after 30 seconds.
- Generates 1 charge.
- causes hits to generate 1 charge.
- generates a charge of Holy Power if the it procs is used within 6 seconds
- doesn't generate Holy Power, but gives abilities that cost Holy Power a 25% chance to make the next Holy Power ability free and cast as if 3 Holy Power were consumed.
- , while active, causes all abilities that generate Holy Power to generate 3 charges of Holy Power instead of 1.
- gives a 50% chance to generate 1 charge when the paladin is affected by a Stun, Fear or Immobilize effect (20 sec cooldown).
- Patch 5.0.4 (2012-08-28): Divine Storm now consumes Holy Power.
- Patch 4.0.3a (2010-11-23): Light of Dawn now consumes Holy Power, while Divine Storm no longer does. Divine Plea now generates Holy Power via Shield of the Templar, the same goes for Hammer of Wrath via Divine Purpose.
- Patch 4.0.1 (2010-10-12): Added.