Refers to an Attack Power adjustment made to instant attacks in patch 1.8. Hunter ranged instant attacks were also normalized in patch 1.10.
Prior to patch 1.8, the weapon damage used for instant attacks was:
- damage = base_weapon_damage + (weapon_speed * Attack Power / 14)
Currently, the normalized weapon damage for instant attacks is:
- normalized_damage = base_weapon_damage + (X * Attack Power / 14)
where X is:
- 1.7 for daggers
- 2.4 for other one-handed weapons
- 3.3 for two-handed weapons
- 2.8 for ranged weapons
- weapon speed for non-normalized attacks (see below)
Certain instant attacks are affected: others are not.
Normalized instant attacks:
Non-normalized instant attacks:
Instant attacks that aren't based on weapon damage and thus aren't normalized:
- Rogue
- Warrior
- Hunter
[Arcane Shot]- [Concussive Shot]
- all stings
- [Counterattack]
Note: Druid feral attacks were not normalized. They are unaffected by weapon speed. Mages, warlocks, and priests have no instant melee or ranged abilities.
Paladins recently gained 
[Crusader Strike] as an instant attack, requiring 41 points in the Retribution talent tree.