Spell power coefficient

Spell power coefficient is an intrinsic property of a spell that determines how much bonus damage or healing it gets from the spell power attribute accumulated from gear, buffs, and talents. In most cases, the coefficient is fixed for a spell; in other cases, it is changed by talents, such as various "empowering" talents, available to some caster classes. Spell power coefficients usually follow set rules outlined in the spell power article, but many exceptions exist. Exact spell power coefficients are tested experimentally and documented when well known.

The listed coefficients are base coefficients and apply for the whole spell and per target, unless otherwise stated. In addition, if talents which specifically affect the coefficient (such as Empowered Fireball) exist for a spell, they are mentioned as well. Any effects which increase overall damage and/or healing, be it directly (e.g. Darkness, Moonfury) or indirectly (e.g. Shadow Weaving), are not listed here.

Hunter pet
Sources: rawr 2.2.19 source code

Paladin
Paladins also receive bonus damage from attack power on their abilities.

Warlock minion
All values are before the effects of talents, glyphs and buffs.

Source: rawr 2.2.19 source code