Spell power
- "Spell Power" redirects here. For the former mage talent, see
[Spell Power]. - "Spellpower" redirects here. For other uses, see Spellpower (disambiguation).
Spell power is an attribute that increases the effect of spells. Spell power increases the damage amount of damaging spells and the healing amount of healing spells.
Your bonus damage and bonus healing from spell power do not usually apply directly to a spell. Each spell (or each component of each spell) which causes damage or healing has a spell power coefficient which determines how much damage or healing the spell does.
Sources of spell power
Spell power is found primarily on trinkets as an on use effect, but can also be increased with potions.
Additional notes
- Spell power does not apply to bandages or potions.
- Is sometimes abbreviated as SP, with an optional letter appended for the type of damage, e.g. SPH for Spell Power: Holy.
History
Prior to Wrath of the Lich King, the attribute known as spell damage would only increase the effects of damaging spells. Healing spells were only increased by the healing attribute. As of patch 3.0.2, spell power now affects both types of spells. Nevertheless, there are items which would increase your bonus healing independently of damage spells. Similarly, there are items which grant bonuses only to certain magic schools such as Fire or Nature.
As of patch 4.0.1 the ability to downrank has been removed. Spell power has also been removed from gear (except weapons and trinkets), but casters now gain 1 spell power per point of intellect. In most cases, spell power was changed to Intellect.
Patch changes
Patch 7.0.3 (2016-07-19):
- Spell power has been removed from caster weapons and their bonus to Intellect greatly increased to compensate. Trinkets using spell power have had their bonus significantly increased.
- Spell power has been removed from the default character sheet.
Patch 4.0.1 (2010-10-12): Spell power has been removed from all armor (except 
[Feathermoon Headdress]). 
Patch 3.0.2 (2008-10-14): All items and effects which grant bonuses to spell damage and spell healing are being consolidated into a single stat, Spell Power. This stat will appear with the same values found on items which grant "increased spell damage and healing" such as on typical Mage and Warlock itemization.
- For classes which do not heal, they should see no change in the character sheet other than new tooltip wording.
- Healing characters will see their bonus healing numbers on the character sheet decrease, however, all healing spells have been modified to receive more benefit from Spell Power than they received from bonus healing, with a net effect of no change to the amount healed by their spells. Some talents have had to be rebalanced to accommodate this change, but the amount healed will remain roughly the same. In addition, some talents will provide only healing spell power.